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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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bmh12e bmh12e
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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.



and the following information is provided.

n= 15Sb1 = .01Sb2 = 0.1


a.Is price a significant variable?
b.Is promotion significant?

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
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shichihenge7shichihenge7
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a.t = -3; p-value is between .01 and .02; reject H0; significant (critical t = 2.179)
b.t = 7; p-value < .01; reject H0; significant (critical t = 2.179)
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