1. Shown below is a portion of an Excel output for a regression analysis relating Y (dependent variable) and X (independent variable).

 

 

1.    What is the estimated regression equation that relates y to x? (2 points)

2.    Is the regression relationship significant? Use a p-value and alpha = 0.05. (2 points)

3.    What is the estimated value of y if x = 12? (2 points)

4.    Interpret the meaning of the value of the coefficient of determination if it is 0.26 in this case. Be very specific. (2 points)

2. Salary information regarding male and female employees of a large company is shown below.

 

 

1.    What is the set of null and alternative hypotheses if we want to determine whether the mean salary of male and female employees is the same? (2 points)

2.    Using a level of significance of 0.05, what is the rejection rule for this test using the critical value approach if the degrees of freedom (df) for this test is given to be df = 97? (2 points)

3.    Calculate the t statistic. (2 points)

4.    Based on the above, what is the conclusion of this statistical test? (2 points)

 

 

 

AccountingQueen

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Status NEW Posted 18 Aug 2017 07:08 AM My Price 8.00

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