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A Regression Model Relating Units Sold (Y),price (X1),and Whether or Not

Question 29

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A regression model relating units sold (Y),price (X1),and whether or not promotion was used (X2 = 1 if promotion was used and 0 if it was not)resulted in the following model. A regression model relating units sold (Y),price (X<sub>1</sub>),and whether or not promotion was used (X<sub>2</sub> = 1 if promotion was used and 0 if it was not)resulted in the following model. and the following information is provided. a.Is price a significant variable? b.Is promotion significant?
and the following information is provided.
A regression model relating units sold (Y),price (X<sub>1</sub>),and whether or not promotion was used (X<sub>2</sub> = 1 if promotion was used and 0 if it was not)resulted in the following model. and the following information is provided. a.Is price a significant variable? b.Is promotion significant?
a.Is price a significant variable?
b.Is promotion significant?

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a.t = -3;p-value is between .0...

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