Weekly
Gross
Revenue
($1,000s)
Television
Advertising
($1,000s)
Newspaper
Advertising
($1,000s)
96
5. 0
6. 5
90
7. 0
8. 0
95
9. 0
10. 5
92
11. 5
12. 5
95
13. 0
14. 3
94
15. 5
16. 3
94
17. 5
18. 2
94
19. 0
20. 5
$\hat{y} = 83.2 + 2.29x_1 + 1.30x_2$.
(a) What is the gross revenue (in dollars) expected for a week when $5,000 is spent on television advertising ($x_1 = 5$) and $1,500 is spent on newspaper advertising ($x_2 = 1.5$)? (Round your answer to the nearest dollar.)
(b) Provide a 95% confidence interval (in dollars) for the mean revenue of all weeks with the expenditures listed in part (a). (Round your answers to the nearest dollar.)
(c) Provide a 95% prediction interval (in dollars) for next week's revenue, assuming that the advertising expenditures will be allocated as in part (a). (Round your answers to the nearest dollar.)