The following data describes weekly gross revenue ($1000 s), television advertising expenditures ( $1000 s), and newspaper advertising expenditures ( $1000 s) for Showtime Movie Theaters. a. Find an estimated regression equation relating weekly gross revenue to television advertising expenditures and newspaper advertising expenditures (to 2 decimals). Revenue = TVAdv + NewsAdv b. Choose the correct plot of the standardized residuals against y^