3. An econometrician regressed the cake sales on the cake price as well as the expenditure on advertising and its square. She obtained the following fitted regression equation, SALES = 109.719 – 7.640PRICE + 12.151ADVERT – 2.768ADVERT² Economic theory says the firm should increase advertising expenditure to the point where an extra $1 of expenditure results in an extra $1 of sales (i.e., marginal cost = marginal revenue). Choose the wrong statement. A. The term ADVERT² captures some nonlinearity. A. This is an example of the (estimated) multivariate linear regression model. B. The estimated marginal revenue is 12.151 +2(−2.768)ADVERT. C. The estimated optimal level of advertising is approximately 2.014. D. A t test can be used to test the hypothesis that advertising does not affect sales.
3. An econometrician regressed the cake sales on the cake price as well as the expenditure on advertising and its square. She obtained the following fitted regression equation, SALES = 109.719 – 7.640PRICE + 12.151ADVERT – 2.768ADVERT² Economic theory says the firm should increase advertising expenditure to the point where an extra $1 of expenditure results in an extra $1 of sales (i.e., marginal cost = marginal revenue). Choose the wrong statement. A. The term ADVERT² captures some nonlinearity. A. This is an example of the (estimated) multivariate linear regression model. B. The estimated marginal revenue is 12.151 +2(−2.768)ADVERT. C. The estimated optimal level of advertising is approximately 2.014. D. A t test can be used to test the hypothesis that advertising does not affect sales.
Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)
14th Edition
ISBN:9781305506381
Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Publisher:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Chapter4: Estimating Demand
Section: Chapter Questions
Problem 8E
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