The owner of Showtime Movie Theaters, Inc., used multiple regression analysis to predict gross revenue (y) as a function of television advertising (x1) and newspaper advertising (x2). Values of y, x1,...

The owner of Showtime Movie Theaters, Inc., used multiple regression analysis to predict gross revenue (y) as a function of television advertising (x1) and newspaper advertising (x2). Values of y, x1, and x2 are expressed in thousands of dollars.

a.
What is the gross revenue expected for a week where $3,500 is spent on television (x1 =3.5) and $1,800 is spent on newspaper advertising (x2= 1.8)(to 3 decimals)?

b.
Provide a 95 prediction interval for next week's revenue, assuming that the advertising expenditures will be allocated as in part (a) (to 2 decimals).

(_____ thousand, ______ thousand)