Tutorial Exercise Management proposed the following regression model to predict sales at a fast-food outlet. y = Bo + B,X1 + B2X2 + B3X3 + 8 where X1 number of competitors within one mile X2 =...

Management proposed the following regression model to predict sales at a fast-food outlet.

Extracted text: Tutorial Exercise Management proposed the following regression model to predict sales at a fast-food outlet. y = Bo + B,X1 + B2X2 + B3X3 + 8 where X1 number of competitors within one mile X2 = population within one mile (1,000s) S1 if drive-up window present *3 = l0 otherwise y = sales ($1,000s). The following estimated regression equation was developed after 20 outlets were surveyed. ý = 10.8 - 4.2x, + 6.8x, + 15.2x3 (a) What is the expected amount of sales (in dollars) attributable to the drive-up window? (b) Predict sales (in dollars) for a store with three competitors within one mile, a population of 8,000 within one mile, and a drive-up window. (c) Predict sales (in dollars) for a store with one competitor within one mile, a population of 3,000 within one mile, and no drive-up window.