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(Solved): Question 16 6.25 The following regression model has been proposed to predict sales at a fast food ou ...



Question 16 6.25 The following regression model has been proposed to predict sales at a fast food outlet.

Y=18-2x_(1)+7x_(2)+15x_(3)

Where 1, " rumber of competitors

x_(2)

* population within one mile

x_(3)=1

if a drive-up window otherwise 0

Y=

sales in (1000s) What is the interpretation of 15 (the coefficient of XX3) in the regression equation? Sales of stores with drive-up windows are

$15,000

lower than those without drive-up windows Sales of stores with drive-up windows are

$15.000

higher than those without drive-up wind-un Sales of stores with drive-up windows are never higher than those without drive-up windows none of the stated answers is correct

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