Details:

The purpose of this assignment is to apply simple regression concepts, interpret simple regression analysis models, and justify business predictions based upon the analysis.

For this assignment, you will use the “Trucks” dataset. You will use SPSS to analyze the dataset and address the questions presented. Findings should be presented in a Word document along with the SPSS outputs.

The business characteristics of n = 250 U.S. trucking and delivery companies for calendar year 2011 were recorded. Among the characteristics studied were the number of drivers and the number of trucks (power units) each company employed.

Part 1:

Given that the data consists of counts and range of counts is large, a natural log transformation is usually performed to improve the linear model results. Apply a natural log transform to both variables and then plot the Y = log(Trucks) vs. X = log(Drivers).

Is there a linear relationship? Justify your answer by providing the SPSS output as an illustration.

Part 2:

Build a simple linear model by regressing Y on X and testing whether or not a relationship exists between the number of drivers and the number of trucks. Address the following questions in your written response:

1. After fitting the model, plot the standardized residuals (on vertical axis) vs. the standardize predictions (on horizontal axis). Is there a pattern? How would you interpret the pattern or lack of pattern?
2. After fitting the model, derive the normal probability plot and interpret what the plot means.
3. What is the coefficient of determination, R², of the model? How would you interpret the R²?
4. What is the estimate of β₁? How would you interpret the estimate of β₁?
5. Is the estimate of β₁ significantly different than 0? Assume an α = 0.01.
6. What is a 95% confidence interval for β₁? How would you interpret the 95% confidence interval for β₁?
7. If a new trucking and delivery company with 4,900 drivers were to be formed, how many trucks would you expect the company would employ based on the model?

APA format is not required, but solid academic writing is expected.

Please answer ALL Parts and Questions in great detail. Thank you!

 

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nursing portfolio
Over the duration of the Bachelor of Nursing program students will develop a portfolio that can be used when they graduate
to demonstrate that they have achieved the competencies required for nursing practice. The portfolio will be based around
the Australian Nursing and Midwifery Council (ANMC) (2006) National Competency Standards for the Registered Nurse 4th
edition, which can be accessed via the Nursing and Midwifery Board of Australia website at:
http://www.nursingmidwiferyboard.gov.au/
Assessment 2 will enable Bachelor of Nursing students to develop their understanding of the ANMC competency domain
Critical Thinking and Analysis. An understanding of this domain is essential for skill development in all 10 competency
areas. To be competent in this domain, students must develop skills in reflection and utilising quality evidence.
Information on reflection and reflective writing can be accessed via the
University of New South Wales link at: http://www.lc.unsw.edu.au/onlib/reflect.html
In aIDition the following link provides examples of how students can approach Part B of the assessment item. In this
example, note how the reflection in the examples is supported by referring to what the student has read in the literature.
More information can be found at Southern Cross University at: www.scu.edu.au/academicskills/download.php?doc_id=3699
Part A Understanding of competency domain Critical Thinking and Analysis.
This section of the assignment will demonstrate your understanding of some aspects of one specific competency domain. In
this section of the assignment students will:
Part A1: Explain your understanding of the nursing competency domain Critical Thinking and Analysis (100 words).
Part A2: Explain your understanding of the role of reflection in developing competence in nursing practice (100 words).
Part B Reflection on learning
The second part of the assignment asks you to demonstrate your ability to critically reflect on knowledge, feelings and
beliefs related to the workshop and the first four topics.
Part B1: Using the workshop as the basis, explain how your knowledge, feelings, attitudes and/or beliefs around cultural
understanding and competence have developed. Refer to the literature to support your reflective statement (200 words).
Part B2: Using activities 1.5 and 1.7 in topic 1, activity 2.7 in topic 2, activity 3.6 in topic 3, and activity 4.6 in
topic 4 as the basis, explain how your beliefs have been challenged and/or your knowledge developed. Refer to the
literature to support your reflective statement (600 words). Ensure that you explain some aspect of EACH of the four (4)
topics. Some topics, however, you may want to explain at greater length.

 

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