7. Investors often wonder just how much influence press reviews and opening box-office gross have on the total U.S. box-office gross revenue. a. Determine an estimated regression equation predicting total U.S. box-office gross revenue. Consider all factors originally used in 5a) and 6a) as well as the critics' opinion score and the opening box-office gross. b. Assess the significance and fit of the regression equation developed in part a). c. Are critics' opinion score and opening box-office gross significant at a 5% level? a. Opening Gross: 1.91456E-11 b. Opening Theaters: 0.022414903 C. MPAA D: 0.0122573 d. Critics Opinion: 0.01155404 e. Oscar Nomination: 0.01998491