A shoe store developed the following estimated regression equation relating sales to inventory Investment and advertising expenditures. 9-21+10x+7x2 where Xinventory investment ($1,000s) X2 advertising expenditures ($1,000s) y sales ($1,000s). (a) Predict the sales (in dollars) resulting from a $14,000 investment in inventory and an advertising budget of $11,000. $ (b) Interpret b, and b₂ in this estimated regression equation. Sales can be expected to increase by $ inventory investment is held constant. for every dollar increase in inventory Investment when advertising expenditure is held constant. Sales can be expected to increase by $ ASK YOUR TEACHER PRACTICE AN for every dollar increase in advertising expenditure when

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A shoe store developed the following estimated regression equation relating sales to inventory investment and advertising expenditures.
where
9-21+ 10x+7x2
X₁ inventory investment ($1,000s)
x2
advertising expenditures ($1,000s)
y=sales ($1,000s).
(a) Predict the sales (in dollars) resulting from a $14,000 investment in inventory and an advertising budget of $11,000.
$
(b) Interpret b, and by in this estimated regression equation.
Sales can be expected to increase by $
inventory investment is held constant.
for every dollar increase in inventory Investment when advertising expenditure is held constant. Sales can be expected to increase by $
ASK YOUR TEACHER
PRACTICE AN
for every dollar increase in advertising expenditure when
Transcribed Image Text:A shoe store developed the following estimated regression equation relating sales to inventory investment and advertising expenditures. where 9-21+ 10x+7x2 X₁ inventory investment ($1,000s) x2 advertising expenditures ($1,000s) y=sales ($1,000s). (a) Predict the sales (in dollars) resulting from a $14,000 investment in inventory and an advertising budget of $11,000. $ (b) Interpret b, and by in this estimated regression equation. Sales can be expected to increase by $ inventory investment is held constant. for every dollar increase in inventory Investment when advertising expenditure is held constant. Sales can be expected to increase by $ ASK YOUR TEACHER PRACTICE AN for every dollar increase in advertising expenditure when
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