Answered: The owner of Showtime Movie Theaters,…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter7: Integration

Section7.CR: Chapter 7 Review

Problem 88CR

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Question

The owner of Showtime Movie Theaters, Inc., would like to predict
weekly gross revenue as a function of advertising expenditures.
Historical data for a sample of eight weeks follow.

Weekly Gross Revenue($1000s)	Television Advertising($1000s)	Newspaper Advertising ($1000s)
96 90 95 92 95 94 94 94	5.0 2.0 4.0 2.5 3.0 3.5 2.5 3.0	1.5 2.0 1.5 2.5 3.3 2.3 4.2 2 .5

a. Develop an estimated regression equation with the amount of
television advertising as the independent variable.
b. Develop an estimated regression equation with both television
advertising and newspaper advertising as the independent variables.
c. Is the estimated regression equation coefficient for television
advertising expenditures the same in part (a) and in part (b)?
Interpret the coefficient in each case.
d. Predict weekly gross revenue for a week when $3500 is spent on
television advertising and $1800 is spent on newspaper advertising.

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