Dixie Showtime Movie Theaters, Inc., owns and operates a chain of cinemas in several markets in the southern U.S. The owners would like to estimate weekly gross revenue as a function of advertising expenditures. Data for a sample of eight markets for a recent week follow. Weekly Gross Television Advertising Newspaper Advertising Market Revenue ($100s) ($100s) ($100s) Mobile 103.5 4.9 1.7 Shreveport 51.6 3.3 3.0 Jackson 75.8 4.0 1.5 Birmingham 127.8 4.2 4.0 Little Rock 134.8 3.2 4.3 Biloxi 101.4 3.6 2.2 New Orleans 237.8 Baton Rouge 219.6 5.0 6.7 8.5 5.9 (a) Use the data to develop an estimated regression equation with the amount of television advertising as the independent variable. Let x represent the amount of television advertising. If required, round your answers to three decimal places. For subtractive or negative numbers use a minus sign even if there is +sign before the blank. (Example: -300) 9- Test for a significant relationship between television advertising and weekly gross revenue at the 0.05 level of significance. What is the interpretation of this relationship? There Select your answer a significant relationship between the amount spent on television advertising and weekly gross revenue. The estimated regression equation is the best estimate of the Select your answer -Select your answer- (b) How much of the variation in the sample values of weekly gross revenue does the model in part (a) explain? If required, round your answer to two decimal places. given the