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Assignment 2: Correlation and Regression
A human resources (HR) manager wants to know if annual performance review scores can be predicted by the number of vacation days taken during the year and the number of dependents an employee claims. She randomly pulls the vacation, W-2, and performance review records of twenty employees. The data is presented below.
EmployeeNumber of Vacation Days TakenNumber of DependentsOverall Performance Rating (from 1 [lowest] to 4 [highest])11022.921232.43104241522.351433.261251.971313.481532.191622.9101432.4111342121222.3131133.2141051.9151313.4161332.1171422.9181833.4191743201403.3
Using the above data, run a correlation matrix and then run a regression analysis in Microsoft Excel that will answer the human resources (HR) manager’s question. Examine the results and consider the implications. Write a 3- to 4-page paper based on the results and implications. Make sure to include your data printout and justify your responses. In your paper, address the following questions:Identify the R-squared value for this data set, along with the R-value. Explain what each means.
Describe what the F-test and the p value tell us in general and name each for these data sets and analyses.
Explain what can be learned from the multiple regression that may not be known from the correlation matrix.
Justify whether performance review scores can be predicted by the number of days of vacation taken, dependents claimed, or vacation days taken in combination with the number of dependents. Support your position.
Describe any potential ethical or legal concerns related to this research. Provide a rationale backed by authoritative references to support your position.Your final product should include your Microsoft Excel computations and a 3- to 4-page Microsoft Word document. Utilize a minimum of three scholarly sources.
Use the following headings and subheadings to organize your paper:Defining and explaining conceptsPrediction
R-squared and R-value
F-test
p value
Correlation coefficient versus regression weight (beta value)Results
Discussion and implications of results
References
Appendix (Microsoft Excel printout)Submission Details:By the due date assigned, save your paper as M4_A2_Lastname_Firstname.doc and Microsoft Excel computations as M4_A2_Lastname_Firstname.xls and submit these to the Submissions Area.
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