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Nopane Advertising Strategy Analysis Questions: 1. What does Regression 1 in the case say about the merits of "emotional" vs. "rational" copy? What does Regression 3 say about the two types of copy? What is the interpretation of the coefficient on copy in Regression 1? Regression 3? In Regression 1, the estimated coefficient on the "Dum Copy" variable is 2.134. Since Dum Copy = 1 if the "emotional" copy is used, and = 0 if the "rational copy is used, a positive coefficient would indicate that the "emotional" copy results in higher average sales than the "rational" copy. However, we should note that the t-value associated with the hypothesis test with null hypothesis that the true coefficient on Dum Copy = 0 is 1.1. The degrees of freedom associated with this t-value are n - # of coefficients estimated = 19. Therefore we can determine the corresponding p-value to be 0.285. (Note...

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