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Question
The following is part of the results of a regression analysis involving sales (yin millions of dollars), advertising expenditures (x1in thousands of dollars), and number of salespeople (x2) for a corporation. The regression was performed on a sample of 10 observations.| Coefficient | Standard Error | |
| Constant | -11.340 | 20.412 |
| x1 | 0.798 | 0.332 |
| x2 | 0.141 | 0.278 |
a. Write the regression equation.
b. Interpret the coefficients of the estimated regression equation found in Part (a).
c. At
=0.05, test for the significance of the coefficient of advertising.d. At
=0.05, test for the significance of the coefficient of number of salespeople.e. If the company uses $50,000 in advertisement and has 800 salespersons, what are the expected sales? Give your answer in dollars.
Answer
This answer is hidden. It contains 374 characters.
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