## Question

###### A shoe store developed the following estimated regressionequation relating sales to inventory investment and advertisingexpenditures.Å· = 21 + 12x1 + 7x2wherex1 = inventory investment ($1,000s)x2 = advertising expenditures ($1,000s)y = sales($1,000s).(a) Predict the sales (in dollars) resulting from a$15,000 investment in inventory and an advertising budget of$10,000._________$ (b)Interpret b1 and b2 inthis estimated regression equation.Sales can be expected to increase by $ ________ for every

A shoe store developed the following estimated regression equation relating sales to inventory investment and advertising expenditures. Å· = 21 + 12x1 + 7x2 where x1 = inventory investment ($1,000s) x2 = advertising expenditures ($1,000s) y = sales ($1,000s). (a) Predict the sales (in dollars) resulting from a $15,000 investment in inventory and an advertising budget of $10,000. _________$ (b) Interpret b1 and b2 in this estimated regression equation. Sales can be expected to increase by $ ________ for every dollar increase in inventory investment when advertising expenditure is held constant. Sales can be expected to increase by $ _________ for every dollar increase in advertising expenditure when inventory investment is held constant.

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