2. A Corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is able to predict their eventual success. The accompanying table records average weekly sales (in thousands of dollars) and aptitude test scores from a random sample of eight representatives. Test Weekly Sales Score 10 55 12 60 28 85 24 75 18 80 16 85 15 65 12 60 a. Estimate the linear regression of weekly sales on aptitude test scores. b. Interpret the estimated slope of the regression line. c. Test the null hypothesis that representatives' weekly sales are not linearly related to their aptitude test scores against the alternative that there is positive association.

Question

please not from excel. thanks in advance.

2. A Corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is
able to predict their eventual success. The accompanying table records average weekly sales (in thousands of dollars) and aptitude test
scores from a random sample of eight representatives.
Test
Weekly
Sales
Score
10
55
12
60
28
85
24
75
18
80
16
85
15
65
12
60
a. Estimate the linear regression of weekly sales on aptitude test scores.
b. Interpret the estimated slope of the regression line.
c. Test the null hypothesis that representatives' weekly sales are not linearly related to their aptitude test scores against the alternative that
there is positive association.
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Transcribed Image Text

2. A Corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is able to predict their eventual success. The accompanying table records average weekly sales (in thousands of dollars) and aptitude test scores from a random sample of eight representatives. Test Weekly Sales Score 10 55 12 60 28 85 24 75 18 80 16 85 15 65 12 60 a. Estimate the linear regression of weekly sales on aptitude test scores. b. Interpret the estimated slope of the regression line. c. Test the null hypothesis that representatives' weekly sales are not linearly related to their aptitude test scores against the alternative that there is positive association.