Create a 1-2-page resource that will describe databases that are relevant to EBP around a diagnosis you chose and could be used to help a new hire nurse better engage in EBP.

Create a 1-2-page resource that will describe databases that are relevant to EBP around a diagnosis you chose and could be used to help a new hire nurse better engage in EBP.

Demonstration of Proficiency

By successfully completing this assessment, you will demonstrate your proficiency in the course competencies through the following assessment scoring guide criteria:

  • Competency 1: Interpret findings from scholarly quantitative, qualitative, and outcomes research articles and studies.
    • Explain why the sources selected should provide the best evidence for the chosen diagnosis.
  • Competency 2: Analyze the relevance and potential effectiveness of evidence when making a decision.
    • Describe the best places to complete research and what types of resources one would want to access to find pertinent information for the diagnosis within the context of a specific health care setting.
  • Competency 4: Plan care based on the best available evidence.
    • Identify five sources of online information (medical journal databases, websites, hospital policy databases, et cetera) that could be used to locate evidence for a clinical diagnosis.
  • Competency 5: Apply professional, scholarly communication strategies to lead practice changes based on evidence.
    • Describe communication strategies to encourage nurses to research the diagnosis, as well as strategies to collaborate with the nurses to access resources.
    • Communicate using writing that is clear, logical, and professional with correct grammar and spelling using current APA style.

Professional Context

As a baccalaureate-prepared nurse, you will be responsible for providing patient-centered, competent care based on current evidence-based best practices. You will be required to do research, analysis, and dissemination of best evidence to stay abreast of these best practices. Understanding where to go to find credible sources and locate evidence, as well as which search terms to use, is the foundation of incorporation of best practices.

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Scenario

You are supervising three nurses working on the medical-surgical floor of a local teaching hospital. This hospital is nationally recognized as a leader in education and has a computer lab with an online library where staff has access to medical research databases (that is, CINAHL, PubMed, Medline, and Cochrane library) and online sources of all hospital policies, procedures, and guidelines, and computers at nurse workstations that also have access to these resources. (For this scenario, use the Capella University Library to simulate the hospital’s online library.) You have given the nurses their patient assignments and you have all participated in shift report. A new nurse who just completed orientation and training a week ago approaches you and tells you that one of the assigned patients has a diagnosis he or she is very unfamiliar with. Knowing that patient-centered care based on best practices is imperative to positive patient outcomes, you want to assist this nurse to find research that can be utilized to provide the best care for this patient. Describe how you would communicate with this nurse to encourage him or her to research the diagnosis. Assume you will assist in the quest to locate evidence, then describe where you would go within the facility and what resources you would look for. These resources may include websites, journals, facility policies or guidelines, or any other sources of online information.

You may choose the diagnosis for the patient in this scenario. Choose something you would find interesting to research or that applies to a clinical problem you would be interested in addressing. Create a list of at least five sources that could be used to find evidence, with the best source listed first, and explain why the sources you chose are best to find evidence for the diagnosis you chose and the clinical scenario. You are only evaluating the sources of evidence (database, website, policy database or website, et cetera). You are not actually completing a search and selecting evidence. Consider the following examples: a nursing journal in CINAHL may not be the best source of evidence for information on how to administer medications through a central-venous catheter, whereas a hospital policy database found on a website may not be the best source of information on caring for a patient with a rare chromosomal abnormality.

Preparation

To help ensure you are prepared to complete this assessment, review the following resources related to the Capella library. These resources will provide you an overview of the types of tools, resources, and guides available in the library. This may be useful in forming a better understanding of the library to apply to the hypothetical situation laid out in the scenario of this assessment.

Remember, it is also appropriate to look toward databases and resources outside of the Capella library, such as organizational policies, professional organizations, and government health care resources.

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Instructions

The purpose of this assessment is to understand where to find evidence that can be applied to clinical scenarios and to learn effective communication and collaboration with clinical staff during the process of evidence location. As a baccalaureate-prepared nurse, you will not only use research for self-improvement in your clinical role, but you will also serve as a mentor to supervised nursing staff. Therefore, you will need to be able to communicate and collaborate effectively to guide them toward resources to find research, as well as support them through the initial evidence location process. In doing so, nurses can gain access to evidence that can be analyzed and utilized to stay current on best practices. This allows them to provide safe, patient-centered care and improve patient outcomes.

For this assessment:

  • Describe your role as a baccalaureate-prepared nurse supervising clinical staff nurses with regard to communication and collaboration in locating evidence for application to a nursing practice scenario.
  • Compile a list of five online databases or other online sources (that is, websites, journals, facility policies or guidelines, et cetera) that can be used to research evidence to apply to this scenario and describe to which of these you would direct a nurse colleague to search for evidence.
  • Describe where you might go in the clinical setting to complete this research and how you would access the desired, relevant research within research databases or other online sources.

Be sure to address the following in this assessment, which correspond to the grading criteria in the scoring guide. Please study the scoring guide carefully so that you will know what is needed for a distinguished score.

  • Describe communication strategies to encourage nurses to research the diagnosis, as well as strategies to collaborate with the nurses to access resources.
  • Describe the best places to complete research and what types of resources you would want to access to find pertinent information for the diagnosis within the context of a specific health care setting.
  • Identify five sources of online information (medical journal databases, websites, hospital policy databases, et cetera) that could be used to locate evidence for a clinical diagnosis.
  • Explain why the sources of online information selected should provide the best evidence for the chosen diagnosis.
  • Communicate using writing that is clear, logical, and professional with correct grammar and spelling using current APA style.

Note: While you are not selecting and evaluating specific evidence to help with the clinical diagnosis, you should still be citing the literature and best practices to support your description of your communication and collaboration approach. Additionally, it is appropriate to cite best practices related to EBP and evaluating databases to support your explanation as to why you selected the five sources of online information that you did.

Submission Requirements

Your assessment should meet the following requirements:

  • Length of submission: 1–2 pages (not including the reference page) informal description of communication, collaboration, and evidence location process, including a list of databases or other sources with description of why they are appropriate for clinical scenario diagnosis (that is, something that would be useable in professional practice for other nurses). Be sure to include an APA-formatted reference page at the end of your submission.
  • Number of references: Cite a minimum of three sources of scholarly or professional evidence that supports your findings and considerations. Resources should be no more than five years old.
  • APA formatting: References and citations are formatted according to current APA style.

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Assessment 4 Instructions: Final Care Coordination Plan Content

Assessment 4 Instructions: Final Care Coordination Plan Content

For this assessment, you will implement the preliminary care coordination plan you developed in Assessment 1. Present the plan to the patient in a face-to-face clinical learning session and collaborate with the patient in evaluating session outcomes and addressing possible revisions to the plan.

NOTE: You are required to complete this assessment after Assessment 1 is successfully completed.

Care coordination is the process of providing a smooth and seamless transition of care as part of the health continuum. Nurses must be aware of community resources, ethical considerations, policy issues, cultural norms, safety, and the physiological needs of patients. Nurses play a key role in providing the necessary knowledge and communication to ensure seamless transitions of care. They draw upon evidence-based practices to promote health and disease prevention to create a safe environment conducive to improving and maintaining the health of individuals, families, or aggregates within a community. When provided with a plan and the resources to achieve and maintain optimal health, patients benefit from a safe environment conducive to healing and a better quality of life.

This assessment provides an opportunity for you to apply communication, teaching, and learning best practices to the presentation of a care coordination plan to the patient.

You are encouraged to complete the Vila Health: Cultural Competence activity prior to completing this assessment. Completing course activities before submitting your first attempt has been shown to make the difference between basic and proficient assessment.

Demonstration of Proficiency

By successfully completing this assessment, you will demonstrate your proficiency in the course competencies through the following assessment scoring guide criteria:

  • Competency 1: Adapt care based on patient-centered and person-focused factors.
    • Design patient-centered health interventions and timelines for care delivered through direct clinical interaction that is logged in the CORE ELMS system.
  • Competency 2: Collaborate with patients and family to achieve desired outcomes.
    • Evaluate learning session outcomes and the attainment of mutually agreed-upon health goals, in collaboration with a patient.
  • Competency 3: Create a satisfying patient experience.
    • Evaluate patient satisfaction with the care coordination plan and progress made toward Healthy People 2020 goals and leading health indicators.
  • Competency 4: Defend decisions based on the code of ethics for nursing.
    • Make ethical decisions in designing patient-centered health interventions.
  • Competency 5: Explain how health care policies affect patient-centered care.
    • Identify relevant health policy implications for the coordination and continuum of care.

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Preparation

In this assessment, you will implement the preliminary care coordination plan you developed in Assessment 1 and communicate the plan to the patient in a professional, culturally sensitive, and ethical manner.

To prepare for the assessment, consider the patient experience and how you will present the plan. Make sure you schedule time accordingly.

Note: Remember that you can submit all, or a portion of, your plan to Smarthinking Tutoring for feedback, before you submit the final version for this assessment. If you plan on using this free service, be mindful of the turnaround time of 24–48 hours for receiving feedback.

Instructions

Note: You are required to complete Assessment 1 before this assessment.

For this assessment:

  • Complete the preliminary care coordination plan you developed in Assessment 1.
  • Present the plan to the patient in a face-to-face clinical learning session. Communicate in a professional, culturally sensitive, and ethical manner.
  • Collaborate with the patient in evaluating session outcomes and addressing possible revisions to the plan.

Reminder: The time you spend presenting your final care coordination plan must be logged in the CORE ELMS system. The total time spent in securing individual participation in this activity in Assessment 1 and presenting your plan in this assessment must be at least three hours. The CORE ELMS link is located in the courseroom navigation menu.

Please be advised that the Volunteer Experience form requires that you provide the name and contact information for at least one individual with whom you worked as part of your direct clinical activity. Your faculty may reach out to this individual to verify that you have accurately documented and completed your clinical hours.

Document Format and Length

Build on the preliminary plan document you created in Assessment 1. Your final plan should be 5–7 pages in length.

Supporting Evidence

Support your care coordination plan with peer-reviewed articles, course study resources, and Healthy People 2020 resources. Cite at least three credible sources.

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Grading Requirements

The requirements, outlined below, correspond to the grading criteria in the Final Care Coordination Plan Scoring Guide, so be sure to address each point. Read the performance-level descriptions for each criterion to see how your work will be assessed.

  • Design patient-centered health interventions and timelines for care delivered through direct clinical interaction that is logged in the CORE ELMS system.
    • Address three patient health issues.
    • Design an intervention for each health issue.
    • Identify three community resources for each health intervention, so the patient may make an informed decision about what resources to use.
  • Make ethical decisions in designing patient-centered health interventions.
    • Consider the practical effects of specific decisions.
    • Include the ethical questions that generate uncertainty about the decisions you have made.
  • Identify relevant health policy implications for the coordination and continuum of care.
    • Cite specific health policy provisions.
  • Evaluate learning session outcomes and the attainment of mutually agreed-upon health goals, in collaboration with the patient.
    • What aspects of the session would you change?
    • How might revisions to the plan improve future outcomes?
  • Evaluate patient satisfaction with the care coordination plan and progress made toward Healthy People 2020 goals and leading health indicators.
    • What changes would you recommend to improve patient satisfaction and better align the session with Healthy People 2020 goals and leading health indicators?
Additional Requirements

Before submitting your assessment, proofread your final care coordination plan to minimize errors that could distract readers and make it more difficult for them to focus on the substance of your plan.

You must submit your hours to the CORE ELMS system before you can complete this assessment and course.

Portfolio Prompt: Save your presentation to your ePortfolio. Submissions to the ePortfolio will be part of your final Capstone course.

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Collaborative Learning Community (CLC) assignment

Collaborative Learning Community (CLC) assignment

This is a Collaborative Learning Community (CLC) assignment.

Nursing theories are tested and systematic ways to implement nursing practice. Select a nursing theory and its conceptual model. Prepare a 10‐15 slide PowerPoint in which you describe the nursing theory and its conceptual model and demonstrate its application in nursing practice. Include the following:

  1. Present an overview of the nursing theory. Provide evidence that demonstrates support for the model’s efficacy in nursing practice. Explain how the theory proves the conceptual model.
  2. Explain how the nursing theory incorporates the four metaparadigm concepts.
  3. Provide three evidence‐based examples that demonstrate how the nursing theory supports nursing practice. Provide support and rationale for each.

Refer to the resource, “Creating Effective PowerPoint Presentations,” located in the Student Success Center, for additional guidance on completing this assignment in the appropriate style.

While APA style is not required for the body of this assignment, solid academic writing is expected, and documentation of sources should be presented using APA formatting guidelines, which can be found in the APA Style Guide, located in the Student Success Center.

This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to LopesWrite. Refer to the LopesWrite Technical Support articles for assistance.

Questions:

1. Explain how the nursing theory incorporates the four metaparadigm concepts.

2. Provide three evidence-based examples that demonstrate how the nursing theory supports nursing practice. Provide support and rationale for each.

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The theory that my group choose was:

Hildegard Peplau’s Interpersonal Relations Theory

Hildegard Peplau’s interpersonal relations theory is referred to as psychodynamic nursing, which refers to the understanding of one’s behavior. Peplau’s (1909-1999) work was a major contribution to mental health laws and defined nursing as an interpersonal process of therapeutic interactions between an ill individual in need of health services and an educated nurse trained to recognize and respond to those needs (Peplau, 1952). She considered the person to be an organism that desires to reduce tension or anxiety. The environment is not clearly defined but is made up of existing forces outside of the person. Health is defined as forward movement of the human process toward creative and productive community living. Nursing is a therapeutic interpersonal process existing in four phases: orientation, identification, exploitation, and resolution (see Figure 2.5).

The nurse has a variety of roles that include stranger, teacher, resource, counselor, technical expert, and leader (Creasia & Friberg, 2011). This theory can be explained as the understanding of the interpersonal relationship between the patient and the nurse. Peplau recognized that such a relationship does exist, and the nurse is not just a messenger between the physician and patient.

Figure 2.5
Hildegard Peplau’s Interpersonal Relations Theory

The figure presents Hildegard Peplau's interpersonal relations theory. The theory starts with orientation, moves to identification, proceeds to exploitation, and ends with resolution.

Lecture:

Nursing Theory

A theory is a collection of statements that explain a relationship between two or more ideas. Theory maintains a central role in the evolution of the nursing discipline. It is something all nurses use in their daily practices, whether known or not. Relatively new, nursing theory is a structure of purposeful and systematic ideas that help to organize disciplinary thinking and influence practice. Much discussion and debate have occurred regarding the various theory definitions. Levine (1995) promoted acceptance of nursing theory, which she called the intellectual life of nursing. She identified that students often fail to embrace nursing theory and do not fully grasp the importance of nursing theory and its relevance for practice and education.

Understanding nursing theory strengthens the focus of care by guiding nursing practice. It may help to think about nursing theories as various lenses used to view different perspectives of known nursing phenomena. For example, Dorothy Orem’s self-care deficit theory focuses on assisting others in managing self-care to maintain or improve human function at an effective level (Orem, 1995). Also, Sister Callista Roy’s adaptation theory explains how individuals are in constant interaction with a changing environment and that the individual must adapt to change to have a positive response (Creasia & Friberg, 2011).

Example of Dorothy Orem’s Self-Care Deficit TheoryAn elderly man recently received a total hip replacement. During the discharge process, the registered professional nurse educates the patient about many things, including activity restrictions, medications, and wound care. The nurse also reviews activities of daily living, such as showering and toileting. The nurse realizes that the patient’s balance may be altered and discusses fall precautions with the patient. Detailed discharge instructions are an example of moving the patient from a state of dependence on others for care to a state of independence and self-care.Example of Sister Callista Roy’s Adaptation TheoryThe school nurse receives a phone call from a parent of an eighth-grade female student stating that the student recently suffered a femoral fracture from a trampoline injury that required open reduction internal fixation. She has successfully recovered to the point that she can return to class next week. The nurse realizes that because of the full-leg cast the student will be excused from physical education class and likely will require assistance with mobilization and toileting. Based on the student’s age, psychosocial issues are likely to be involved due to an altered self-concept related to body image. Her balance may be altered as well. Ultimately, the student demonstrated a positive attitude and adapted well to this life-altering event.Nursing theory is present in day-to-day interactions with patients. The core values derived from theoretical assumptions can serve as a foundation upon which to build practices. The goal of applying theory is to improve practice.

The nursing profession is an art and science involving a complex mix of many parts. Nurses are expected to perform the science of nursing through medical and technical competencies, such as nursing skills, academic knowledge, and professional performance. Nurses must become lifelong learners and engage in continuing education throughout their careers to maintain those nursing skills and competencies. Included in the science of nursing are theories, conceptual models, and research that is specific to nursing. The art of nursing requires a foundation of nursing skills, academic knowledge, and professional performance. It is difficult to define or measure the art of nursing other than by looking at the pronounced noticeability of its absence. Treating patients with dignity and respect, being cognizant of nonverbal cues, and using active listening and communication skills are all qualities patients and families value highly. Nurses should strive to find a balance between the science and the art of nursing in their practices (Palos, 2014).

Nursing is a knowledge-based discipline and profession that incorporates a body of knowledge to guide its practice (Smith & Parker, 2015). Because nursing is a profession, nurses are required to meet specific educational qualifications. Education is systematically obtained from colleges and universities that ultimately produce knowledge-based professional nurses who can practice autonomously. The following characteristics define the meaning of a professional (Creasia & Friberg, 2011):

  • Formal education required
  • Lifelong mission, recognized as life work
  • Encompass knowledge
  • Service to society
  • Practice autonomously
  • Practice guided by ethics
  • Professional culture and values
  • Compensation received

Metaparadigm

Theories are built upon a foundation of concepts. Theoretical statements compose a theory. The concepts incorporated into theoretical statements include areas of interest to the discipline. For nursing theory, these concepts include person, environment, health, and nursing, also referred to as metaparadigm. The metaparadigm includes basic assumptions regarding the theory and highlights areas vital to the nursing discipline and ultimately patient care (see Figure 2.3).

Figure 2.3
Metaparadigm of Nursing Concepts

The figure presents a model of four nursing metaparadigm concepts: Nursing, which is defined by the nursing actions; Person, which is defined by the recipients of care; Health, which is defined by person; and Environment which is defined by internal and external factors.

Note. Adapted from “Nursing Metaparadigm Concepts,” by CJT Consulting & Education, 2017.

Person refers to the patient, client, individual, family, community, or group. These are the recipient(s) of said nursing care. Environment includes external and internal space associated with the person. Health encompasses all areas of, or lack of, the person(s) wellbeing. As the final metaparadigm component, nursing expresses the goal of nursing that is specific to the theory (McEwen, 2007).

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Conceptual Models

Theories can be categorized according to their complexity. These categories include practice theories, midrange theories, and grand theories (also referred to as conceptual models). Conceptual models explain a particular way of thinking, or a mental picture of how the theory fits together, according to the theorist. A conceptual model is the organizing structure that defines the theory.

Types of Theories

Nursing theories are categorized by their level of complexity and are identified as practice theories, midrange theories, or grand theories.

Practice Theory

The purpose of nursing theory is to improve nursing practice, and the lives of patients, families, and communities served by nursing practice. Practice theory defines the delivery of nursing care in specific situations related to practice, incorporating “nurses’ clinical wisdom” (McEwen, 2007) by answering clinical questions. Practice theory is limited in scope in that it focuses on specific areas of nursing, such as a specific patient population or a certain type of nursing practice. Nursing interventions and actions in response to patient-specific needs are often prescribed. Practice theory offers a specific framing of how nurses handle situations within their scope of practice (Levine, 1995). Scenarios of practice theories are often reviewed in nursing journals that focus on management of disease or journals that discuss nursing interventions related to specific patient populations (Creasia & Friberg, 2011).

General System Theory

General system theory is a broad theory that specifies any system being studied as composed of smaller subsystems and also a part of a larger subsystem. It suggests that a system is a set of interrelated parts that are constantly interacting with the environment to attain a common goal (Creasia & Friberg, 2011). In other words, a system is more than the sum of its parts (Boettcher, 1996). When studying the circulatory system, for example, one cannot simply study the components of blood, but must also include the cardiovascular system, the vascular system, respiratory system, and so on to understand how the circulatory system functions.

Change Theory

Change theory is one of the most commonly used theories related to nursing education and patient learning. This theory’s governing principle is that by using certain motivating factors, patients feel empowered and desire to change unhealthy habits. By setting goals and offering incentives, learning and change occur for the patient.

Kurt Lewin (1890-1947), commonly referred to as the father of psychology, was known for his life space or field theory. Kurt Lewin’s field theory states that human behavior is related to both the individual and the environment. Lewin explored human behavior by performing field research. The concepts of driving forces, restraining forces, and equilibrium were used by Lewin to explain human behavior (McEwen, 2007). Lewin believed that desired change in human behavior could occur by first identifying the undesired behavior, then understanding the cause of such behavior, and what forces would need to be strengthened or weakened to bring about change (Burnes & Cooke, 2013). This theory can be applied to many areas of nursing, including mental health, or any area that desires improved health outcomes based on patient compliance with prescribed regimens.

Coping/Adaptation Theory

The ability to cope requires the body to adapt continually to a changing environment. Richard Lazarus (1922-2002) was a psychologist and author who was best known for his theoretical work related to coping. Developed in 1984, Richard Lazarus’s theory of stress, coping, and adaptation centers on how an individual copes with stressful situations (see Figure 2.4).

The theory focuses on various psychological responses to stress that are considered negative, such as emotional distress, anxiety, depression, anger, and fear, to name a few. Lazarus saw these responses as coping mechanisms. Stress is viewed as more than a stimulus causing a response. Nurses can apply this theory to assess the effects of stress on the individual patient. Physical and psychological responses to stressors can occur (Smith & Parker, 2015). For example, an individual working in a stressful environment may develop emotional distress that causes disruptive outbursts and chronic overeating. Physical responses may include high blood pressure and obesity. Another example would be soldiers returning to civilian life and experiencing post-traumatic stress disorder.

Figure 2.4
Richard Lazarus’s Theory of Stress, Coping, and Adaptation

The figure outlines of Richard Lazarus's theory of stress, coping, and adaptation. The theory starts with a stressor, which leads to a primary appraisal ("Is this harmful, threatening, or challenging?") and positive or negative emotions. This leads to a secondary appraisal, "Can I cope with the stress?" and "What are the alternatives?" This can lead to two answers: "Yes, I can cope," with "I experience minimal stress" or "No, I can't cope," with "I experience a lot of stress."

Midrange Theory

Midrange theories are not as complicated as grand theories. Midrange theories contain fewer concepts, are easier to use, and usually contain single applications that can be applied to a variety of practice settings.

Hildegard Peplau’s Interpersonal Relations Theory

Hildegard Peplau’s interpersonal relations theory is referred to as psychodynamic nursing, which refers to the understanding of one’s behavior. Peplau’s (1909-1999) work was a major contribution to mental health laws and defined nursing as an interpersonal process of therapeutic interactions between an ill individual in need of health services and an educated nurse trained to recognize and respond to those needs (Peplau, 1952). She considered the person to be an organism that desires to reduce tension or anxiety. The environment is not clearly defined but is made up of existing forces outside of the person. Health is defined as forward movement of the human process toward creative and productive community living. Nursing is a therapeutic interpersonal process existing in four phases: orientation, identification, exploitation, and resolution (see Figure 2.5).

The nurse has a variety of roles that include stranger, teacher, resource, counselor, technical expert, and leader (Creasia & Friberg, 2011). This theory can be explained as the understanding of the interpersonal relationship between the patient and the nurse. Peplau recognized that such a relationship does exist, and the nurse is not just a messenger between the physician and patient.

Figure 2.5
Hildegard Peplau’s Interpersonal Relations Theory

The figure presents Hildegard Peplau's interpersonal relations theory. The theory starts with orientation, moves to identification, proceeds to exploitation, and ends with resolution.

Note. Adapted from “Developmental States of the Nurse-Client Relationship: Peplau’s Interpersonal Relations Theory,” from Effective Communication in Nursing: Theory and Best Practice, by Southeastern University.

Imogene King’s Theory of Goal Attainment

The central concept of Imogene King’s theory of goal attainment is that personal, interpersonal, and social systems all interact together to reach a common goal (see Figure 2.6).

Imogene King (1923-2007) views the person as the patient in the nurse-patient relationship. Internal and external environments both generate stressors. Health is defined as the patient’s ability to function in societal roles. The focus of nursing is to help the patient maintain health so the patient can perform the duties related to the patient’s current role (King, 1981). For example, to ensure that an elderly patient who lives alone and has no transportation can receive hemodialysis three days a week, it would be necessary to incorporate the family in discharge planning.

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Figure 2.6
Imogene King’s Theory of Goal Attainment

The figure presents Imogene King's theory of goal attainment, showing the relationship among social systems (society), interpersonal systems (groups), and personal systems (individuals).

Note. Adapted from A Theory for Nursing: Systems, Concepts, Process, by I. M. King, 1981, p. 145.

Madeleine Leininger’s Cultural Care Theory

In Madeleine Leininger’s cultural care theory, she believed that cultural competency improved nursing practice. Madeleine Leininger’s (1925-2012) cultural care theory (see Figure 2.7) focuses on the analysis of different cultures to better understand their ideas of health, their behaviors, and their thoughts regarding nursing care (Creasia & Friberg, 2011).

The metaparadigm concept of Person is prominent in this theory, with its focus on better understanding of people and their cultural differences. Persons are not only referred to as human beings, but families, groups, and communities that contribute to their cultural background. The environment is where the individuals live, and it has an impact on a person’s ability to perform self-care. Leininger defined health as “a state of wellbeing that is culturally defined, valued, and practiced, and which reflects the ability of individuals (or groups) to perform their daily role activities in culturally expressed, beneficial, and patterned lifeways” (Leininger, 1991, p. 48). The goal of nursing is to support individuals to maintain or improve their health in a culturally competent way. An example of providing culturally competent care would be respecting the belief of a severely anemic patient who refuses blood products based on the patient’s religion as a Jehovah’s Witness.

Figure 2.7
Madeleine Leininger’s Cultural Care Theory

The figure is a visual representation of Leninger's Sunrise Model.

Note. Adapted from “The Sunrise Model: A Contribution to the Teaching of Nursing Consultation in Collective Health,” by L. Pereira de Melo, 2013, in American Journal of Nursing Research, 1(1), 20-23. Copyright 2013 by the Science and Education Publishing.

Midrange Theory Metaparadigm Concepts

Table 2.1 compares the midrange theories of Peplau, King, and Leininger and presents the midrange theoretical principals related to the metaparadigm concepts of nursing for deeper understanding.

Table 2.1
Midrange Theory Metaparadigm Concepts

Midrange Theorist

Person

Environment

Health

Nursing

Hildegard Peplau: Interpersonal Relations Theory

Viewed humans as organisms

Existing forces outside of the individual

Forward movement of human process toward creative and productive community living

Therapeutic interpersonal process

Imogene King: Theory of Goal Attainment

Patient in a nurse-patient relationship

Internal and external environments generate stress

Patient’s ability to function in current role

Assist the patient in maintaining health

Madeleine Leininger: Cultural Care Theory

Human beings, families, groups, communities

Where individuals live impacts ability for self-care

State of culturally defined well-being

Provide culturally competent support

Note. (Creasia & Friberg 2011; King, 1981; Leininger, 1991; Peplau, 1952)

Grand Theory

Lewin stated that exploring a variety of nursing theories could provide the nurse with new insights into patient care. The term grand theory indicates that the theory has a broad scope, including general concepts. The nature, purpose, and goals are broad (McEwen, 2007). Sister Callista Roy developed a grand theory in 1976 that is considered to be an adaptation model focusing on the human response and adaptation to a constantly changing environment. Grand theories typically are complicated and abstract and are not easily understood (Kolcaba, 2001).

Nightingale’s Environmental Theory

Florence Nightingale’s environmental theory presents disease as a reversible process achieved by altering the patient’s environment. Nightingale believed that individuals are in control of their own lives and desire good health. Also, the individual should be viewed as a holistic, multidimensional being, composed of biological, psychological, and spiritual components who possesses the ability to recover from disease if the environment allows. The environment is the most crucial concept in this theory (see Figure 2.8). Poor environmental factors lead to sickness and disease. Environmental factors include fresh air, sunlight, clean water, adequate food supply, efficient drainage, good hygiene, low noise, adequate temperature, and a clean environment. The environment is external; however, it can affect the individual in sickness or health. Nursing is a service intended to relieve pain and suffering.

It is the professional nurse’s responsibility to alter the patients’ environment to affect change in their health. The goal of nursing should be to promote the reparative process by manipulating the environment. Environmental change is needed for optimal health (Zborowsky, 2014).

Figure 2.8
Florence Nightingale’s Environmental Theory

The figure demonstrates Florence Nightingale's environmental theory, which centers on the client. Around the client are factors that can affect how the patient recovers, which are noise, air, nutrition, light, bedding, variety, health of houses, hope and advice, cleanliness, and ventilation. The nurse, who surrounds everything, is the one who can alter and change these factors to benefit the client.

Note. Adapted from “Nightingale’s Environmental Theory Conceptual Framework,” by Nurselabs.com, 2014.

Rogers’s Science of Unitary Human Beings Theory

Martha Rogers’s science of unitary human beings theory was first publicized in 1970 in her publication, An Introduction to the Theoretical Basic for Nursing. She claimed that nursing was a science and an art. Her work began in the 1960s when she theorized that humans are dynamic energy fields that react with the environment and are continually changing. She viewed the individual as a whole energy field constantly in motion, with language and thought that are sensitive and emotional (see Figure 2.9).

Health is valued and occurs when living in harmony with the environment (Rogers, 1970).

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Figure 2.9
Martha Rogers’s Science of Unitary Human Beings Theory

The figure is a visual representation of Rogers's Science of Unitary Human Beings Theory.Example of Science of Unitary Human Beings TheoryA pediatric patient is hospitalized over the Christmas holiday. The patient’s mother, father, and two younger siblings are in the room as the nurse enters to assess the patient. The nurse feels that the atmosphere is very somber and wants to do something to improve the energy in the room. She mentions that she would be glad to bring in some Christmas DVDs if they are interested in watching movies. They agree, and when she enters the room an hour later, the family is laughing, enjoying a movie. The energy has changed in the room, and it feels more positive and cheerful.This illustration is a three-panel comic strip. The first panel shows a client who looks unhappy while in bed with a visitor sitting next to him. In the second panel, a nurse has entered and asks the client, "Would you like a Christmas movie? I can bring you one." The final panel shows a Christmas tree on the television screen and the client looking happy.

Orem’s Self-Care Deficit Theory

Dorothea Orem’s self-care deficit theory, developed during the years of 1959-2001, focuses on assisting others in managing self-care to maintain or improve human function at an effective level (Orem, 1995). Orem’s three-part theory includes self-care, self-care deficit, and nursing systems (see Figure 2.10).

Self-care is ideally performed by individuals to maintain health and well-being. Self-care deficit requires nursing assistance. Nursing systems define how the nurse will meet the individual’s needs. Orem’s theory states that the individual should be in an appropriate environment to receive care. The environment is external; however, for Orem’s theory, the environment and individual are bound together, and they function as one unit. Individual health is a condition in which humans are structurally and functionally complete. Health is considered physical, psychological, interpersonal, and social (Orem, 1995). The nursing focus should be to maintain health or to return the individual to the previous state of health by assisting with self-care to sustain life and maintain health (Current Nursing, 2012).

Figure 2.10
Orem’s Self-Care Deficit Theory

The figure shows Dorothea Orem's self-care deficit theory, which is made up of three parts: self-care, self-care demands, and self-care agency. However, if there is a deficit, the nursing agency will be in charge of handling it.

Grand Theory Metaparadigm Concepts

Table 2.2 compares the grand theories of Nightingale, Rogers, and Orem and presents the grand theoretical principals related to the metaparadigm concepts of nursing (person, environment, health, and nursing) for deeper understanding.

Table 2.2
Grand Theory Metaparadigm Concepts

Grand Theorist

Person

Environment

Health

Nursing

Nightingale: Environmental Theory

  • Holistic and multidimensional
  • Can recover from disease if environment allows

Poor environment leads to sickness and disease.

Goal is optimal health.

Responsibility to alter the patient’s environment

Rogers: Science of Unitary Human Beings

  • Whole
  • Not reducible
  • Energy field
  • Synergistic human beings
  • Constantly reacting
  • Exchanging matter and energy with humans
  • Valued
  • Occurs when living in harmony with environment
  • Accepting of change

Viewed as a science and an art

Orem: Self-Care Deficit Theory

Individuals perform self-care to maintain health and well-being

External environment and individual bound together

Health is viewed as structurally and functionally complete

  • Assist with self-care
  • Help maintain or return to previous state of health
Note. (Orem, 1995; Rogers, 1970; Zborowsky, 2014; Current Nursing, 2012).

Future of Nursing

It is estimated that the future need of the nursing workforce will increase greatly in coming years. In fact, it is projected that the supply of professional nurses will increase from 3.5 million to 3.95 million by the year 2020; however, this supply will not meet the predicted demand, as more than 4.14 million nurses will be needed at that time. The increased need is partly because more than 70 million baby boomers will soon reach retirement age (Carnevale, Smith, & Gulish, 2015). The aging population will result in more elderly patients who are ill, seeking treatment, and requiring hospitalization and surgeries. Nursing shortages are commonplace across the United States. Nurses are leaving the profession because of retirement, inadequate wages, and stressful work environments related to insufficient staffing and long work hours. Hiring and retaining professional nurses is challenging for many employers. Although there has been an increase in students interested in entering the profession, nursing schools have had to turn students away because of a lack of faculty and facilities to educate them (Health Resources and Services Administration, 2017).

The IOM report, The Future of Nursing: Leading Change, Advancing Health (IOM, 2010), prioritizes the following areas of nursing: transforming practice, transforming education, and transforming leadership. The IOM report identifies several needs for the nursing workforce as it faces the complexity and challenges in today’s health care field. The future of nursing is changing and evolving. It is the duty of all nurses, from entry level to highly experienced, to embrace the changes and ensure that all patients are offered competent, safe, quality, compassionate care (IOM, 2010).

Reflective Summary

Professional nurses understand that nursing history defines the nurse’s role in current practice. Nursing’s rich history before Christianity, in the Middle Ages, during the 1700s, and through the 21st century have shaped the nursing profession. Many nurse leaders have contributed to this history, including pioneers such as Florence Nightingale, Lillian Wald, Clara Barton, and Linda Richards, who have paved the way for future generations of nurses.

Nursing is a knowledge-based discipline and profession that incorporates a body of knowledge to guide its practice (Smith & Parker, 2015). Through the years, professional nurses have identified theories that attempt to explain relationships between nursing care and the patient. These theories are categorized according to their complexity and can be referred to as practice theories, midrange theories, and grand theories or conceptual models. The scope and status of nursing education have dramatically changed from the days of nurse training programs in the late 19th and early 20th centuries. Many nursing education delivery models have evolved. Today, nurses can earn degrees at several levels, with several delivery methods available. The IOM report, The Future of Nursing: Leading Change, Advancing Health (IOM, 2010), emphasizes the transformation of practice, education, and leadership as priorities that will allow the nursing profession to continue to evolve through the 21st century and beyond.

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Environmental Factors and Health Promotion Presentation: Accident Prevention and Safety Promotion for Parents and Caregivers of Infants

Environmental Factors and Health Promotion Presentation: Accident Prevention and Safety Promotion for Parents and Caregivers of Infants

You are required to submit this assignment to LopesWrite. Refer to the LopesWrite Technical Support articles for assistance.

The growth, development, and learned behaviors that occur during the first year of infancy have a direct effect on the individual throughout a lifetime. For this assignment, research an environmental factor that poses a threat to the health or safety of infants and develop a health promotion that can be presented to caregivers.

Create a 10-12 slide PowerPoint health promotion, with speaker notes, that outlines a teaching plan. For the presentation of your PowerPoint, use Loom to create a voice over or a video. Include an additional slide for the Loom link at the beginning, and an additional slide for references at the end.

In developing your PowerPoint, take into consideration the health care literacy level of your target audience, as well as the demographic of the caregiver/patient (socioeconomic level, language, culture, and any other relevant characteristic of the caregiver) for which the presentation is tailored.

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Include the following in your presentation:

  1. Describe the selected environmental factor. Explain how the environmental factor you selected can potentially affect the health or safety of infants.
  2. Create a health promotion plan that can be presented to caregivers to address the environmental factor and improve the overall health and well-being of infants.
  3. Offer recommendations on accident prevention and safety promotion as they relate to the selected environmental factor and the health or safety of infants.
  4. Offer examples, interventions, and suggestions from evidence-based research. At least three scholarly resources are required. Two of the three resources must be peer-reviewed and no more than 6 years old.
  5. Provide readers with two community resources, a national resource, and a Web-based resource. Include a brief description and contact information for each resource.

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Refer to the resource, “Creating Effective PowerPoint Presentations,” located in the Student Success Center, for additional guidance on completing this assignment in the appropriate style.

Refer to the resource, “Loom,” located in the Student Success Center, for additional guidance on recording your presentation.

While APA style is not required for the body of this assignment, solid academic writing is expected, and documentation of sources should be presented using APA formatting guidelines, which can be found in the APA Style Guide, located in the Student Success Center.

This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to LopesWrite. Refer to the LopesWrite Technical Support articles for assistance.

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PSYO120 WEEK 3 DISCUSSION AND ASSIGNMENT

PSYO120 WEEK 3 DISCUSSION AND ASSIGNMENT

Purpose: Design a fictional Community Wellness Center to show how Maslow’s Hierarchy of Needs applies to real-life motivation. You will create a presentation highlighting how your center helps: Imagine your city mayor has asked you to pitch a wellness center for the community. You’ll make a slideshow presentation using Canva, Google Slides, or PowerPoint that introduces how it supports people at each of the 5 levels of Maslow’s Hierarchy

Includes visuals, short explanations, and clear connections to motivation

What to Include in Your Presentation

Project Title Slide

Wellness Centre: Name, Introduction, Population Served, and Mission

The 5 Levels of Maslow’s Hierarchy.

For each level, include:

A service, program, or feature your centre offers

How does that service meet needs at this level

What type of motivation does it support:

Intrinsic motivation: personal growth, enjoyment, curiosity

Extrinsic motivation: praise, money, social approval, meeting basic needs

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people thrive at all five levels of Maslow’s hierarchy. This project builds your

Skills in connecting theory to practice, thinking creatively, and communicating your ideas clearly.

The 5 Levels of Maslow’s Hierarchy.

For each level, include:

A service, program, or feature your center offers

How that service meets needs at this level

What type of motivation it supports:

Intrinsic motivation: personal growth, enjoyment, curiosity, fulfilment.

Extrinsic motivation: praise, money, social approval, meeting basic needs

Example: Physiological: A free healthy meal program (extrinsic motivation) that helps members stay nourished and energized

(intrinsic motivation for health and growth).

Reference a minimum of 1reference, refer to the APA guidelines

Maslow’s Hierarchy Levels to Include:

Physiological needs: What basic survival needs does your center help meet (e.g. food, water, rest)?

Safety needs: How does your center help people feel secure leg. physical safety, health resources)?

Love/Belonging needs: What programs or spaces help people form relationships and feel connected?

. Esteem needs: What services

Submission Requirements

Minimum 6 content slides (1 introduction + 5 Maslow levels)

* Add a title and reference slide (not counted in the 6 slides)

Reference a minimum of 2 references, refer to the APA

* Include images. icons, or color, to make your design engaging.

Self-actualisation: How does your center help people pursue personal growth or fulfil their potential?

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CORE115 WEEK 4 ASSIGNMENT

CORE115 WEEK 4 ASSIGNMENT

Purpose: The primary purpose is to practice reflection on perspective, but also to get an opportunity to reconcile with your past self

We are doing this assignment to practice self-empathy, with a larger purpose of practising empathy for others’ perspectives.

Instructions: All of us have experienced shifts in our own thinking over time. Our perspectives change. The Apostle Paul described

this: “When I was a child, I thought like a child, I reasoned like a child” (1 Cor. 13:11, New International Version).

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Preparation and Reflection:

Spend some time. reflecting on your past beliefs or attitudes that have shifted as you’ve grown. Consider beliefs related to values,

relationships, goals, or worldviews.

Select a specific belief or an attitude to focus on. This belief should have significantly shifted over time and had a clear impact on you

Perspective or actions.

Think about what influenced these changes, experiences, education, people, or even realisations you’ve had.

Writing the Letter:

Introduction: Start with a brief introduction to your younger self, setting the tone for the letter. Express your intention to share insights and understanding.

Explaining the Belief: Describe the belief or attitude you held, including the context in which you formed this perspective.

Understanding and Empathy: Extend understanding to your younger self. Acknowledge the reasons behind your perspective and offer compassion,

Forgiveness and Mercy: If applicable, offer forgiveness to your younger self for any misunderstandings or judgments.

Lessons Learned: Share the lessons you’ve learned from this journey of change.

Reflect on how this changed perspective has influenced your current beliefs, actions, or relationships.

Closing: Conclude with words of encouragement, advice, or hope for your younger self, based on the wisdom you’ve gained.

Formatting Your Letter:

Write your letter in a respectful and gentle tone, aiming for 500-600 words.

Submit your letter to your professor. Rest assured, your reflection will remain confidential.

This assignment is reflection-based, so it does not require you to cite any sources; however, if you choose to cite sources, be sure to practice formatting in APA.

Submit your assignment to Canvas.

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PSYO120 WEEK 4 DISCUSSION

PSYO120 WEEK 4 DISCUSSION

W4 Discussion Question 1: The Memory of a

Witness- How Reliable Is It?

Purpose: The goal of this discussion is to help you apply what you’ve learned about how

memory works to a real-world legal scenario. Memory plays a powerful role in our daily lives, and in the courtroom. However, what we remember (and misremember) isn’t always as accurate as we believe.

Initial Post (due Friday by 11:59 pm CST): Imagine you’re a defense attorney in a criminal

rial. Your client has been accused of robbing a convenience store, and several eyewitnesses

claim to have seen them at the scene. As part of your strategy, you want to educate the jury

about how memony really works, and how it can be flawed. For your initial discussion post

(minimum of 300 words)

Explain to the jury why eyewitnestestinonY may not always be reliable. using eoncepts

from Chapter & of the DpenStax Psyehelneytetoak

In your post, make sure to

dentify and explain edsteetrHHcSaAROson atd Shiftrm model ot

memory (e.g.. encodingorEARhor tem memory long

answer the following questions:

Explain to the jury why eyewitness testimony may not always be reliable, using concepts

from Chapter 8 of the OpenStax Psychology textbook.

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In your post, make sure to:

dentify and explain at least three principles from the Atkinson and Shiffrin model of

memory (e.g.,

Give specift examples of how each principle might cause eyewitnesses to misremember

Or distort what they saw. Examples:

The misinformnation effect (how memory can be altered by post-event information)

Constructive memory (how memories can be reconstructed not replayed)

False memories (how people can remember things that never happened)

Source anmnesia/confusion (misremembering where the information came from)

Share your conclusion Should the jury trust eyewitness memory as strong evidence?

Why or why not

Tip: You might also consider factors suh as stress time delay, suggestion, or misinformation

that could influence memory at each stage

Response Posts due Sunday by 11:59 pm CST: Comment on twO of your classmates posts

with probing questions, alternative ideas, or other valuable input. Your questions or

Comments should be a minimum of 100 words, promote ciscsuSsion, and should contribute to the learning of the group by offering dditional insight or unque perspectives

encoding, storage, retrieval, sensory memory, short- term memory, long

term memory).

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PSYO120 WEEK 4 ASSIGNMENT

PSYO120 WEEK 4 ASSIGNMENT

Details

Purpose. This assignment is designed to deepen your understanding of Sternberg’s theory of intelligence by explainirng its threei

components, analytical, creative, and practical inteligence, and how each type can be measured. Sternberg challenged the traditional idea

of intelligence by proposing multiple inteligences and criticizing conventional IQ tests. This theory helps us appreciate that inteligence is

not one-dimensional and influences how we perceive different ways of “being smarti

Instructions: Create a 4 to 6-minute screencast presentation, with a minimum of 4 slides. that

1 Explains Sternbergs Triarchic Theory briefly describe the three types of intelligence:

Analytical Inteligence problem-solving ahd reasoning: The brainy problem solver (think Sherlock Holmes or that friend who aces

puzzles)

o Creative Inteligence ability to deal with new situations and generate novel ideas: The out-of-the-box thinker who invents new

ideas and solves complex problems)

E Practicaf Intelligence (everydaystreet smarts or applying

  1. 2. Bring each type to ife with a real-life example: It car be from your own life a movie, a TV show, or even a famous person. Make it

relatable and fun!

  1. How do we mneasure these intelligences? Describes how each type of intelligehce is measured or assessed, including challenges or

limitations in measurement. Specifically, how researchers or psychologists might fgure outif someone’s analytical, creative, or

practical smart.

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knowledge in real-world contexts The real-world superhero who knows

how to get things done, no matter what).

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limitations in measurement. Specifically, how researchers or psychologists might figure out if someone’s analytical, creative, or

practical smart.

Submission Requirements:

Write a script for your presentation before recording. This helps you stay organized and keep your presentation within the time limit.

Create a visual presentation (PowerPoint, Google Slides, or similar) that supports your script with relevant images, key terms, and

concise explanations. Minimum of 4 slides, not including title and reference page.

Reference a minimum of 1 reference, refer to the APA Formatting Expectations

Use a screencasting tool to record yourself narrating your slides.

Be sure to practice your presentation before hand! Often writing out a script will help keep you on track and ensure you stay

within the time limits.

Creatng a Screencast nstrucions

Be sure to review the rubric to understandhow your instructor will grade this submission.

Submit your assignment to Canvas.

View Rubric

W4 Assignment 1: Intelligence Unpacked: Exploring How We Think and Solve Problems

1a

Ratings

Pts

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50 multiple questions for statistics and probability

50 multiple questions for statistics and probability

QUESTION 1

Suppose the American Medical Association Center for Health Policy Research included data, by state, on the number of community hospitals and the average patient stay (in days) in its publication. The data (by state) are shown in the table.
Which two states have an unusually high number of hospitals?

State Hospitals State Hospitals State Hospitals
Alabama 330 Colorado 72 Georgia 163
Alaska 16 Connecticut 35 Hawaii 19
Arizona 61 Delaware 8 Idaho 41
Arkansas 88 Dist. of Columbia 11 Illinois 279
California 236 Florida 289 Indiana 113
Iowa 123 Nebraska 90 Rhode Island 12
Kansas 133 Nebraska 21 S.Carolina 68
Kentucky 107 New Hampshire 21 S.Dakota 52
Louisiana 459 New Jersey 96 Tennessee 122
Maine 38 New Mexico 37 Texas 235
Maryland 51 New York 333 Utah 42
Mass. 101 N.Caroline 117 Vermont 15
Michigan 175 N.Dakota 47 Virginia 98
Minnesota 276 Ohio 193 Washington 92
Mississippi 102 Oklahoma 399 W.Virginia 59
Missouri 133 Oregon 66 Wisconsin 478
Montana 53 Pennsylvania 231 Wyoming 27
[removed] a. Florida and Wisconsin  
[removed] b. Alabama and Arkansas  
[removed] c. Wisconsin and Louisiana  
[removed] d. Maine and Iowa  
[removed] e. none of these choices  

4 points   

QUESTION 2

In one of the archaeological excavation sites, the artifact density (number of prehistoric artifacts per 10 liters of sediment) was 2.0. Suppose you are going to dig up and examine 40 liters of sediment at this site. Let  r = 0, 1, 2, 3,… be a random variable that represents the number of prehistoric artifacts found in your 40 liters of sediment. Find the probability that you will find 1 or more artifacts in the 40 liters of sediment. Round your answer to the nearest ten thousandth.

[removed] a. 0.0137
[removed] b. 0.0027
[removed] c. 0.0013
[removed] d. 0.0096
[removed] e. 0.0107

4 points   

QUESTION 3

Compute the population standard deviation σ for the following sample data, assuming the sample comprises the entire population. Round your answer to the nearest hundredth.

x: 21 19 12 30 29
[removed] a. 9.71  
[removed] b. 7.46  
[removed] c. 8.68  
[removed] d. 6.68  
[removed] e. 2.29  

4 points   

QUESTION 4

What is a sampling distribution?

[removed] a. A set of measurements (or counts), either existing or conceptual
[removed] b. A numerical descriptive measure of a sample
[removed] c. A conclusion about the value of a population parameter based on information about the corresponding sample statistic and probability
[removed] d. A probability distribution for a sample statistic
[removed] e. A numerical descriptive measure of a population

4 points   

QUESTION 5

To compare two elementary schools regarding teaching of reading skills, 12 sets of identical twins were used. In each case, one child was selected at random and sent to school A, and his or her twin was sent to school B. Near the end of fifth grade, an achievement test was given to each child. The results follow:

Twin Pair 1 2 3 4 5 6
School A 80 145 118 90 112 118
School B 83 135 115 105 105 113

 

Twin Pair 7 8 9 10 11 12
School A 98 112 115 144 124 96
School B 93 87 98 132 135 105

 

Suppose a sign test for matched pairs with a 5% level of significance is used to test the hypothesis that the schools have the same effectiveness in teaching reading skills against the alternate hypothesis that the schools have different levels of effectiveness in teaching reading skills. Let p denote portion of positive signs when the scores of school B are subtracted from the corresponding scores of school A. Calculate the P-value. Round your answer to four decimal places.

 

[removed] a. 0.3001
[removed] b. 0.2501
[removed] c. 0.1251
[removed] d. 0.7499
[removed] e. 0.3071

4 points   

QUESTION 6

A data processing company has a training program for new salespeople. After completing the training program, each trainee is ranked by his or her instructor. After a year of sales, the same class of trainees is again ranked by a company supervisor according to net value of the contracts they have acquired for the company. The results for a random sample of 11 salespeople trained in the last year follow, where x is rank in training class and y is rank in sales after 1 year. Lower ranks mean higher standing in class and higher net sales.

Person 1 2 3 4 5 6
x rank 8 11 2 4 5 3
y rank 7 2 3 6 5 8

 

Person 7 8 9 10 11
x rank 7 9 10 1 6
y rank 9 11 10 1 4

 

Using a 10% level of significance, test the claim that the relation between x and y is monotone (either increasing or decreasing). What is the level of significance α?

 

[removed] a. a = 0.10
[removed] b. a = 0.03
[removed] c. a = 0.05
[removed] d. a = 1.00
[removed] e. a = 10.00

4 points   

QUESTION 7

Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% bond). For the past several years, assume the following data. Compute the sample mean for x and for y. Round your answer to the nearest tenth.

x: 11 0 36 22 34 24 25 -11 -11 -22
y: 9 -3 28 14 23 16 14 -3 -4 -9
[removed] a. X = 37.0  and  y = 12.0  
[removed] b. X = 65.0  and y = 9.1  
[removed] c. X = 10.8  and y = 8.5  
[removed] d. X = 152.0  and y = 9.8  
[removed] e. X = 8.5  and y = 10.8  

4 points   

QUESTION 8

Benford’s Law claims that numbers chosen from very large data files tend to have “1” as the first nonzero digit disproportionately often. In fact, research has shown that if you randomly draw a number from a very large data file, the probability of getting a number with “1” as the leading digit is about 0.301. Suppose you are an auditor for a very large corporation. The revenue report involves millions of numbers in a large computer file. Let us say you took a random sample of n = 247 numerical entries from the file and r = 60 of the entries had a first nonzero digit of 1. Let p represent the population proportion of all numbers in the corporate file that have a first nonzero digit of 1. Test the claim that p is less than 0.301 by using α = 0.1. Are the data statistically significant at the significance level? Based on your answers, will you reject or fail to reject the null hypothesis?

[removed] a. The P-value is less than the level of significance so the data are statistically significant. Thus, we reject the null hypothesis.
[removed] b. The P-value is less than the level of significance so the data are not statistically significant. Thus, we reject the null hypothesis.
[removed] c. The P-value is less than the level of significance so the data are statistically significant. Thus, we fail to reject the null hypothesis.
[removed] d. The P-value is greater than the level of significance so the data are not statistically significant. Thus, we reject the null hypothesis.
[removed] e. The P-value is less than the level of significance so the data are statistically significant. Thus, we reject the null hypothesis.

4 points   

QUESTION 9

Suppose the age distribution of the Canadian population and the age distribution of a random sample of 528 residents in the Indian community of Red Lake are shown below.

    Observed Number
Age (years) Percent of Canadian Population in Red Lake Village
Under 5 6.4% 38
5 to 14 11.8% 48
15 to 64 70.3% 397
65 and older 11.5% 45

Use a = 0.05 to test the claim that the age distribution of the general Canadian population fits the age distribution of the residents of Red Lake Village. Given a value of 9.673 for x2, find (or estimate) the P-value of the sample test statistic.

[removed] a. 0.01 < P-Value < 0.025
[removed] b. P-Value < 0.005
[removed] c. 0.025 < P-Value < 0.05
[removed] d. 0.25 < P-Value < 0.50
[removed] e. 0.05 < P-Value < 0.10

4 points   

QUESTION 10

Identify the level of measurement corresponding to the data “Cost of rod and reel” associated with fishing.

[removed] a. interval
[removed] b. nominal
[removed] c. ratio
[removed] d. none of these choices
[removed] e. ordinal

4 points   

QUESTION 11

Data may be classified by one of the four levels of measurement. What is the name of the lowest level?

[removed] a. nominal
[removed] b. ratio
[removed] c. ordinal
[removed] d. interval
[removed] e. simple

4 points   

QUESTION 12

Compute the expected age μ of a British nurse in 1851. Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Round your answer to nearest hundredth.

Age range (yr) 20–29 30–39 40–49 50–59 60–69 70–79 80+
Midpoint (x) 24.5 34.5 44.5 54.5 64.5 75.5 84.5
Percent of nurses 5.7% 9.6% 19.5% 29.1% 24.9% 9.0% 2.2%
[removed] a. 53.93  
[removed] b. 59.50  
[removed] c. 43.96  
[removed] d. 54.50  
[removed] e. 53.96  

4 points   

QUESTION 13

Wetlands offer a diversity of benefits. They provide habitat for wildlife, spawning grounds for U.S. commercial fish, and renewable timber resources. In the last 200 years the United States has lost more than half its wetlands. Suppose Environmental Almanac gives the percentage of wet lands lost in each state in the last 200 years. Assume that for the lower 48 states, the percentage loss of wetlands per state is as follows:

46 37 36 42 81 20 73 59 35 50
87 52 24 27 38 56 39 74 56 31
27 91 46 9 54 52 30 33 28 35
35 23 90 72 85 42 59 50 49  
48 38 60 46 87 50 89 49 67  

 

The distribution is approximately mound shaped.

[removed] a. True
[removed] b. False

4 points   

QUESTION 14

1.      Wing Foot is a shoe franchise commonly found in shopping centers across the United States. Wing Foot knows that its stores will not show a profit unless they gross over $940,000 per year. Let A be the event that a new Wing Foot store grosses over $940,000 its first year. Let B be the event that a store grosses over $940,000 its second year. Wing Foot has an administrative policy of closing a new store if it does not show a profit in either of the first two years. Assume that the accounting office at Wing Foot provided the following information: 56% of all Wing Foot stores show a profit the first year; 75% of all Wing Foot store show a profit the second year (this includes stores that did not show a profit the first year); however, 80% of Wing Foot stores that showed a profit the first year also showed a profit the second year. Compute P(A and B), if P(A) = 0.56, P(B) = 0.75 and P(B|A) = 0.80. Round your answer to the nearest hundredth.

[removed] a. 0.80
[removed] b. 0.51
[removed] c. 0.70
[removed] d. 0.45
[removed] e. 0.94

4 points   

QUESTION 15

1.      How hot does it get in Death Valley? Assume that the following data are taken from a study conducted by the National Park System, of which Death Valley is a unit. The ground temperaturesoF  were taken from May to November in the vicinity of Furnace Creek. Compute the median for these ground temperatures. Round your answer to the nearest tenth.

148 151 168 173 194 178 193
194 178 178 168 163 151 144
[removed] a. 170.5  
[removed] b. 193.5  
[removed] c. 341.0  
[removed] d. 168.0  
[removed] e. 159.5  

4 points   

QUESTION 16
Assume that the following data represent baseball batting averages (multiplied by 1000) for a random sample of National League players near the end of the baseball season. The frequency table showing class limits, class boundaries, midpoints and frequency is given below. Draw a histogram.

 

 

 

Boundaries Midpoint Frequency
       

4 points   

QUESTION 17

1.      There are 4 radar stations and the probability of a single radar station detecting an enemy plane is 0.55. Make a histogram for the probability distribution.

r p(r)
0 0.041
1 0.200
2 0.368
3 0.300
4 0.092

 

4 points   

QUESTION 18

1.      Richard has been given a 9-question multiple-choice quiz in his history class. Each question has three answers, of which only one is correct. Since Richard has not attended the class recently, he doesn’t know any of the answers. What is the value of p? (p is the value of success) Round your answer to the nearest tenth.

[removed] a. 0.3
[removed] b. 9.0
[removed] c. 3.0
[removed] d. 2.7
[removed] e. 27.0

4 points   

QUESTION 19

In baseball, is there a linear correlation between batting average and home run  percentage? Let x represent the batting average of a professional baseball player. Let y represent the home run percentage (number of home runs per 100 times at bat). Suppose a random sample of baseball players gave the following information.

x 0.251 0.259 0.29 0.265 0.269
y 1.3 3.7 5.8 3.9 3.7

Make a scatter diagram for the data. Draw the line that best fits the data.

4 points   

QUESTION 20

Sand and clay studies were conducted at a site in California. Twelve consecutive depths, each about 15 cm deep, were studied and the following percentages of sand in the soil were recorded.

33.7 26.9 31.2 27.0 33.1 27.7

 

34.0 24.7 33.7 32.8 25.8 28.8
           

 

Convert this sequence of numbers to a sequence of symbols A and B, where A indicates a value above the median and B denotes a value below the median gives ABABABABAABB. The number of runs is 10. What is the lower critical number c1?

 

[removed] a.  1
[removed] b. 4
[removed] c.  2
[removed] d.  5
[removed] e.  3

4 points   

QUESTION 21

The probability of a single radar station detecting an enemy plane is 0.75 and the probability of not detecting an enemy plane is 0.25. How many such stations are required to be 98% certain that an enemy plane flying over will be detected by at least one station?

[removed] a. 2
[removed] b. none of these choices
[removed] c. 3
[removed] d. 4
[removed] e. 1

4 points   

QUESTION 22

A professional employee in a large corporation receives an average of μ = 42.7 e-mails per day. Most of these e-mails are from other employees in the company. Because of the large number of e-mails, employees find themselves distracted and are unable to concentrate when they return to their tasks. In an effort to reduce distraction caused by such interruptions, one company established a priority list that all employees were to use before sending an e-mail. One month after the new priority list was put into place, a random sample of 38 employees showed that they were receiving an average of x = 35.3 e-mails per day. The computer server through which the e-mails are routed showed that σ = 19.6. Has the new policy had any effect? Use a 5% level of significance to test the claim that there has been a change (either way) in the average number of e-mails received per day per employee. What is the value of the test statistic?

[removed] a. –0.061
[removed] b. 0.378
[removed] c. –2.327
[removed] d. 0.061
[removed] e. 2.327

4 points   

QUESTION 23

What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Thanks to Florence Nightingale and the British census of 1851, we have the following information (based on data from classic text Notes on Nursing, by Florence Nightingale). Note: In 1851 there were 25,466 nurses in Great Britain. Furthermore, Nightingale made a strict distinction between nurses and domestic servants. Find the probability that a British nurse selected at random in 1851 would be 70 years of age or older. Round your answer to nearest thousandth.

Age range (yr) 20–29 30–39 40–49 50–59 60–69 70–79 80+
Midpoint (x) 24.5 34.5 44.5 54.5 64.5 75.5 84.5
Percent of nurses 5.7% 9.7% 19.5% 29.2% 25.0% 9.1% 1.8%
[removed] a. 0.091  
[removed] b. 0  
[removed] c. 0.099  
[removed] d. 0.105  
[removed] e. 0.109  

4 points   

QUESTION 24

Independent random samples from two regions in the same area gave the following chemical measurements (ppm). Assume the population distributions of the chemical are mound-shaped and symmetric for these two regions.
Region I: ;
981 726 686 496 657 627 815 504 950 605 570 520
Region II: ;

 

1024 830 526 502 539 373 888 685 868 1093 1132 792 1081 722 1092 844
Let  be the population mean and  be the population standard deviation for . Let  be the population mean and  be the population standard deviation for . Determine and examine the 90% confidence interval for . Does the interval consist of numbers that are all positive? all negative? or different signs? At the 90% level of confidence, is one region more interesting that the other from a geochemical perspective?

[removed] a. The interval contains both positive and negative numbers. We can say at the required confidence level that one region is more interesting than the other.
[removed] b. The interval contains only positive numbers. We can say at the required confidence level that one region is more interesting than the other.
[removed] c. The interval contains only negative numbers. We cannot say at the required confidence level that one region is more interesting than the other.
[removed] d. The interval contains only positive numbers. We cannot say at the required confidence level that one region is more interesting than the other.
[removed] e. The interval contains both positive and negative numbers. We cannot say at the required confidence level that one region is more interesting than the other.

4 points   

QUESTION 25

When do creative people get their good ideas? Assume that the survey of 963 inventors gives the following information:

Time of Day When Good Ideas Occur
Time Number of Inventors
6 A.M. – 12 noon 281
12 noon – 6 P.M. 120
6 P.M. – 12 midnight 320
12 midnight – 6 A.M. 242

Assuming that the time interval includes the left limit and all the times up to but not including the right limit, estimate the probability that an inventor has a good idea during the time interval from 6 A.M. to 12 noon. Write your answer as a fraction in simplest form.

4 points   

QUESTION 26

The systolic blood pressure of individuals is thought to be related to both age and weight. Let the systolic blood pressure, age, and weight be represented by the variables x1x2, and x3, respectively. Suppose that Minitab was used to generate the following descriptive statistics, correlations, and regression analysis for a random sample of 15 individuals.

Descriptive Statistics
Variable N Mean Median TrMean StDev SE Mean
x1 15 159.35 159.65 159.35 3.401 0.878134
x2 15 72.77 73.77 72.77 1.722 0.444618
x3 15 185.90 185.20 185.90 4.266 1.101476

 

Variable Minimum Maximum Q1 Q3
x1 126 173 140.497 166.049
x2 45 89 47.721 78.484
x3 129 249 140.492 222.010

 

Correlations (Pearson)
  x1 x2
x2 0.848  
x3 0.817 0.634

Regression Analysis

The regression equation is
x1 = 0.703 + 1.388x2 + 0.907x

 

Predictor Coef StDev T P
Constant 0.703 0.495 1.42 0.091
x2 1.388 0.669 2.07 0.030
x3 0.907 0.390 2.33 0.019
S = 0.424 R-sq = 92.5 % R-sq(adj) = 91.1 %    

Test the coefficient of  in the regression equation to determine if it is zero or not zero. Use a level of significance of 5%.  Do you accept or reject the null hypothesis that the coefficient should equal zero?

[removed] a. accept
[removed] b. reject

4 points   

QUESTION 27

How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). Suppose a random sample of ponies gave the following information.

x 4 7 14 19 21
y 50 85 130 160 175

Make a scatter diagram for the data.4 points   

QUESTION 28

Draw a tree diagram to display all the possible head-tail sequences that can occur when you flip a coin foour times.

[removed] a.
[removed] b.
[removed] c.
[removed] d.
[removed] e.

4 points   

QUESTION 29

Suppose automobile insurance companies gave annual premiums for top-rated companies in several states. The figure below shows box plots for the annual premium for urban customers in three states.

Which state has the highest median premium?

[removed] a. Pennsylvania has the highest median premium.
[removed] b. California has the highest median premium.
[removed] c. Texas as well as California have the highest median premium.
[removed] d. Texas has the highest median premium.
[removed] e. none of these choices

4 points   

QUESTION 30

1.      Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Make a histogram for the probability distribution.

Age range (yr) 20–29 30–39 40–49 50–59 60–69 70–79 80+
Midpoint (x) 24.5 34.5 44.5 54.5 64.5 75.5 84.5
Percent of nurses 9.8% 5.6% 19.4% 24.9% 29.3% 9.3% 1.7%

 

4 points   

QUESTION 31

The systolic blood pressure of individuals is thought to be related to both age and weight. Let the systolic blood pressure, age, and weight be represented by the variables x1x2, and x3, respectively. Suppose that Minitab was used to generate the following descriptive statistics, correlations, and regression analysis for a random sample of 15 individuals.

Descriptive Statistics
Variable N Mean Median TrMean StDev SE Mean
x1 15 155.56 156.06 155.56 3.815 0.985029
x2 15 63.42 64.02 63.42 1.226 0.316552
x3 15 195.04 194.64 195.04 4.164 1.075140

 

Variable Minimum Maximum Q1 Q3
x1 126 179 144.445 165.050
x2 42 83 47.888 77.461
x3 120 250 139.698 222.040

 

Correlations (Pearson)
  x1 x2
x2 0.870  
x3 0.802 0.517

Regression Analysis

The regression equation is
x1 = 0.804 + 1.308x2 + 0.966x

 

Predictor Coef StDev T P
Constant 0.804 0.692 1.16 0.134
x2 1.308 0.732 1.79 0.050
x3 0.966 0.705 1.37 0.098
S = 0.319 R-sq = 90.6 % R-sq(adj) = 92.6 %    

Relative to its mean, which variable has the smallest spread of data values?

a.       X1

b.      X2

c.       X3

4 points   

QUESTION 32

Rothamsted Experimental Station (England) has studied wheat production since 1852. Each year many small plots of equal size but different soil/fertilizer conditions are planted with wheat. At the end of the growing season, the yield (in pounds) of the wheat on the plot is measured. Suppose for a random sample of years, one plot gave the following annual wheat production (in pounds):

4.28 4.36 4.43 4.92 5.16 4.13 2.52 4.52
4.50 3.02 2.55 3.53 4.75 3.67 3.20 4.38

For this plot, the sample variance is . Another random sample of years for a second plot gave the following annual wheat production (in pounds):

3.76 3.94 3.95 3.80 3.70 3.74 4.06 3.94
3.98 4.04 3.85 3.94 3.89 4.05 3.88 4.04

For this plot, the sample variance is . Test the claim using  that the population variance of annual wheat production for the first plot is larger than that for the second plot.
What are the degrees of freedom?

[removed] a.  14;  15
[removed] b.  15;  15
[removed] c.  14;  16
[removed] d.  15;  14
[removed] e.  16;  14

4 points   

QUESTION 33

A random sample of  communities in western Kansas gave the following information for people under 25 years of age.

 

: Rate of hay fever per 1000 population for people under 25

A random sample of   regions in western Kansas gave the following information for people over 50 years old.

 

: Rate of hay fever per 1000 population for people over 50

Assume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group over 50 has a lower rate of hay fever? Use a = 0.05 State the null and alternate hypotheses.

4 points   

QUESTION 34

Are customers more loyal in the East or in the West? The following table is based on information from Trends in the United Sates, published by the food marketing Institute, Washington, D.C. The columns represent loyalty (in years) at a primary supermarket. The rows represent regions of the United States.

  Less Than

1 Year 

1 – 2

Years

3 – 4 Years 5 – 9 Years 10 – 14 Years 15 or More Years Row Total
East 32 54 59 112 77 118 452
Midwest 31 68 68 120 63 173 523
South 53 92 93 158 106 158 660
West 41 56 67 78 45 86 373
Column Total 157 270 287 468 291 535 2008

What is the probability that a customer chosen at random has been loyal 5 or more years given that he or she is from the South? Round your answer to the nearest thousandth.

[removed] a. 0.210
[removed] b. 0.326
[removed] c. 0.639
[removed] d. 0.417
[removed] e. none of these choices

4 points   

QUESTION 35

Assume that about 30% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 140 insurance claims to be processed in the next few days. What is the probability that from 45 to 47 of the claims have been padded?

[removed] a. 0.167
[removed] b. 0.119
[removed] c. 0.104
[removed] d. 0.056
[removed] e. 0.222

4 points   

QUESTION 36

What percentage of the general U.S. population have bachelor’s degrees? Suppose that the Statistical Abstract of the United States, 120th Edition, gives the following percentage of bachelor’s degrees by state. For convenience, the data are sorted in increasing order.

17 18 18 18 19 20 20 20 21 21
21 21 21 22 22 22 22 22 23 23
24 24 24 24 24 25 25 25 25 26
26 26 26 26 26 27 27 27 28 28
28 29 29 31 31 32 32 34 35 38

Illinois has a bachelor’s degree percentage rate of about 18%. Into what quartile does this rate fall?

[removed] a. second quartile
[removed] b. first quartile
[removed] c. third quartile
[removed] d. first quartile as well as second quartile
[removed] e. none of these choices

4 points   

QUESTION 37

Wing Foot is a shoe franchise commonly found in shopping centers across the United States. Wing Foot knows that its stores will not show a profit unless they gross over $940,000 per year. Let A be the event that a new Wing Foot store grosses over $940,000 its first year. Let B be the event that a store grosses over $940,000 its second year. Wing Foot has an administrative policy of closing a new store if it does not show a profit in either of the first two years. Assume that the accounting office at Wing Foot provided the following information: 61% of all Wing Foot stores show a profit the first year; 72% of all Wing Foot store show a profit the second year (this includes stores that did not show a profit the first year); however, 87% of Wing Foot stores that showed a profit the first year also showed a profit the second year. Compute  if , , and . Round your answer to the nearest hundredth.

[removed] a. 0.46
[removed] b. 0.44
[removed] c. 0.76
[removed] d. 0.80
[removed] e. 0.87

4 points   

QUESTION 38

How long did real cowboys live? One answer may be found in the book The Last Cowboys by Connie Brooks (University of New Mexico Press). This delightful book presents a thoughtful sociological study of cowboys in West Texas and Southeastern New Mexico around the year 1890. Assume that a sample of 32 cowboys gave the following years of longevity:

59 52 67 86 72 66 99 89 84 91 91
92 69 68 87 86 73 61 71 75 72 73
85 84 91 57 77 76 84 93 58 49  

Make a stem-and-leaf display for these data.

[removed] a. 4 9 = 49 years
4 9
5 9 8 7 2
6 9 8 7 6 1
7 7 6 5 3 3 2 2 1
8 9 7 6 6 5 4 4 4
9 9 9 3 2 1 1 1
[removed] b. 4 9 = 49 years
4 9
5 2 7 8 9
6 1 6 7 8
7 1 2 2 3 3 5 7 8
8 3 4 4 5 6 6 7 9
9 1 1 1 2 3 9 9
[removed] c. 4 9 = 49 years
4 9
5 9 8 7 2
6 8 7 6 1
7 8 6 5 4 3 2 2 1
8 9 7 6 6 5 4 4 3
9 9 9 3 2 1 1 1
[removed] d. 4 9 = 49 years
4 9
5 2 7 8 9
6 1 6 7 8 9
7 1 2 2 3 3 5 6 7
8 4 4 4 5 6 6 7 9
9 1 1 1 2 3 9
[removed] e. none of these choices

4 points   

QUESTION 39

Wind Mountain is an archaeological study area located in southwestern New Mexico. Potsherds are broken pieces of prehistoric Native American clay vessels. One type of painted ceramic vessel is called Mimbres classic black-on-white. At three different sites the number of such sherds was counted in local dwelling excavations.

Site I Site II Site III
51 34 18
46 46 22
57 53 44
44 59 23
18   61
33   40
15    

Shall we reject or not reject the claim that there is no difference in population mean Mimbres classic black-on-white sherd counts for the three sites? Test given a = 0.01.
Find (or estimate) the P-value of the sample test statistic.

[removed] a. P-Value = 0.01
[removed] b. 0.05 < P-Value < 0.1
[removed] c. P-Value = 0.05
[removed] d. P-Value > 0.1
[removed] e. 0.01 < P-Value < 0.05

4 points   

QUESTION 40

Jim has a 5-year-old car in reasonably good condition. He wants to take out a $50,000 term (that is, accident benefit) car insurance policy until the car is 10 years old. Assume that the probability of a car having an accident in the year in which it is x years old is as follows:

x = age 5 6 7 8 9
P(accident) 0.01182 0.01282 0.01386 0.01513 0.01602

Jim is applying to a car insurance company for his car insurance policy. Using the probabilities that the car will have an accident in its 5th, 6th, 7th, 8th, or 9th year, and the $50,000 accident benefit, what is the expected loss to Car Insurance Company for the respective years? Round your answers to the nearest dollar.

[removed] a. $591, $641, $693, $747, $801
[removed] b. $591, $646, $693, $747, $801
[removed] c. $591, $641, $693, $757, $801
[removed] d. $581, $641, $693, $747, $801
[removed] e. $581, $646, $693, $757, $801

4 points   

QUESTION 41

Finish times (to the nearest hour) for 57 dogsled teams are shown below. Use five classes. Categorize the basic distribution shape as uniform, mound-shaped symmetric, bimodal, skewed left, or skewed right.

The relative frequency histogram of the above data is given below.

[removed] a. Bimodal
[removed] b. none of these choices
[removed] c. mound-shaped symmetric
[removed] d. approximately mound-shaped symmetric
[removed] e. Skewed right

4 points   

QUESTION 42

Does talking while walking slow you down? Suppose a study considered mean cadence (steps per minute) for subjects using no walking device, a standard walker, and a rolling walker. In addition, the cadence was measured when the subjects had to perform dual tasks. The second task was to respond vocally to a signal or respond to an interview question while walking. Cadence was measured for subjects who were just walking (using no walking device, a standard walker, or a rolling walker), for subjects required to respond to a signal, and for subjects required to respond to an interview question while walking. How many cells are there in the data table?

[removed] a. 9
[removed] b. 8
[removed] c. 7
[removed] d. 12
[removed] e. 1

4 points   

QUESTION 43

John runs a computer software store. He counted 125 people who walked by his store in a day, 51 of whom came into the store. Of the 51, only 23 bought something in the store. Estimate the probability that a person who comes into the store will buy nothing. Round your answer to the nearest hundredth.

[removed] a. 0.82
[removed] b. 0.59
[removed] c. 0.22
[removed] d. 0.55
[removed] e. none of these choices

4 points   

QUESTION 44

Diagnostic tests of medical conditions have several results. The rest result can be positive or negative. A positive test (+) indicates the patient has the condition. A negative test (–) indicates the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 137 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for the condition are shown.

  Condition Present Condition Absent Row Total
Test Result + 119 18 137
Test Result – 18 46 64
Column Total 137 64 201

Assume that the sample is representative of the entire population. For a person selected at random, find P(getting test result – or condition present). Round your answer to the nearest hundredth.

[removed] a. 0.91
[removed] b. 0.28
[removed] c. 0.09
[removed] d. 0.13
[removed] e. none of these choices

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4 points   

QUESTION 45

1.      Suppose a certain species bird has an average weight of x = 3.80 grams. Based on previous studies, we can assume that the weights of these birds have a normal distribution with o = 0.37 grams. For a small group of 10 birds, find the margin of error for a 70% confidence interval for the average weights of these birds.

[removed] a. 0.06 grams
[removed] b. 0.02 grams
[removed] c. 1.04 grams
[removed] d. 0.12 grams
[removed] e. 0.04 grams

4 points   

QUESTION 46

Finish times (to the nearest hour) for 57 dogsled teams are shown below. Draw a relative – frequency histogram. Use five classes.

261 270 236 244 280 296 284 298 289 289 248 256
338 360 341 333 261 267 287 296 313 311 309 309
299 303 277 283 304 305 288 290 288 289 297 299
332 330 309 328 309 328 285 291 295 298 306 315
310 318 318 320 333 321 323 324 327      
 

 

   
       
     
     
     
     

4 points   

QUESTION 47

In one of the archaeological excavation sites, the artifact density (number of prehistoric artifacts per 10 liters of sediment) was . Suppose you are going to dig up and examine  liters of sediment at this site. Let  0, 1, 2, 3,… be a random variable that represents the number of prehistoric artifacts found in your  liters of sediment. Find the probability that you will find fewer than  prehistoric artifacts in the  liters of sediment. Round your answer to the nearest ten thousandth.

4 points   

QUESTION 48

1.      A coin is to be tossed 1000 times. What is the probability that the 785th toss is heads?

[removed] a. 3/4
[removed] b. 0
[removed] c. 1/4
[removed] d. 1/2
[removed] e. 1

4 points   

QUESTION 49

1.      If event A is certain to occur, what is P(A)?

[removed] a. 0.5
[removed] b. 0.25
[removed] c. 0.75
[removed] d. 1
[removed] e. 0

4 points   

QUESTION 50

1.      It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico:

x 5.50 6.50 7.50 7.75 8.75
y 15 32 55 39 72

2.
Find a for the equation of the least-squares line y = a + bx.

[removed] a. 75.923
[removed] b. 42.698
[removed] c. –75.923
[removed] d. –42.698
[removed] e. –42.068

Algebra homework

Algebra homework

Name/Student Number:

 

Algebra 2 Final Exam

 

Multiple Choice
Identify the choice that best completes the statement or answers the question.

 

Simplify the trigonometric expression.

 

a. b. c. d.

 

 

In , is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth.

 

a = 3, c = 19

a. = 9.1°, = 80.9°, b = 18.8 c. = 14.5°, = 75.5°, b = 18.8
b. = 80.9°, = 9.1°, b = 18.8 d. = 75.5°, = 14.5°, b = 18.8

 

 

What is the simplified form of sin(x + p)?

a. cos x b. sin x c. –sin x d. –cos x

 

 

Rewrite the expression as a trigonometric function of a single angle measure.

 

a. b. c. d.

 

 

Short Answer

 

Consider the sequence 1, , , , ,…

a. Describe the pattern formed in the sequence.
b. Find the next three terms.

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Consider the sequence 16, –8, 4, –2, 1, …

a. Describe the pattern formed in the sequence.
b. Find the next three terms.

 

 

Consider the graph of the cosine function shown below.

a. Find the period and amplitude of the cosine function.

  1. At what values of for do the maximum value(s), minimum values(s), and zeros occur?

 

 

Verify the identity. Justify each step.

 

 

 

 

 

Verify the identity .

 

Use the definitions of the trigonometric ratios for a right triangle to derive a cofunction identity for tan(90° – A). Show your steps.

 

Use an angle sum identity to verify the identity .

 

 

Without graphing, determine whether the function represents exponential growth or exponential decay.

 

Without graphing, determine whether the function represents exponential growth or exponential decay.

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The exponential decay graph shows the expected depreciation for a new boat, selling for $3500, over 10 years.

a. Write an exponential function for the graph.
b. Use the function in part a to find the value of the boat after 9.5 years.

 

Use a graphing calculator to solve the equation in the interval from 0 to 2p. Round to the nearest hundredth.

 

The equation models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched and then released.

 

  1. Solve the equation for t.
    b. Find the times at which the weight is first at a height of 1 cm, of 3 cm, and of 5 cm above the rest position. Round your answers to the nearest hundredth.
    c. Find the times at which the weight is at a height of 1 cm, of 3 cm, and of 5 cm below the rest position for the second time. Round your answers to the nearest hundredth.

 

Consider the infinite geometric series.

a. Write the first four terms of the series.
b. Does the series diverge or converge?
c. If the series has a sum, find the sum.

 

Use the graph of the sine function  shown below.

a. How many cycles occur in the graph?
b. Find the period of the graph.
c. Find the amplitude of the graph.

 

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