chapter 7 Practice Problems 1. 2. 3. 4. 5. 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. Market Mobile Shreveport Jackson Birmingham Little Rock Biloxi New Orleans Baton Rouge Weekly Gross Revenue Television Advertising Newspaper Advertising ($100s) 102.5 52.7 75.8 127.8 137.8 101.4 237.8 219.6 ($100s) 5.1 3.2 4.0 4.3 3.5 3.6 5.0 6.9 -52.783 41.491 ($100s) 1.6 3.0 1.5 4.0 4.3 (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 subtractve or negative numbers use a minus sign even if there is a sign before the blank. (Example: -300) X Hint(s) Check My Work 2.3 8.4 5.8 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?

could you answer a, b, c and d ASAP

ter 7 Practice Problems Hint(s) Dixie 5howtime 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 elght markets for a recent week follow. (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 subtract, or negative numbers use a minus sign even if there is a + sign before the biank. (Examplet -300) S.Qx 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? (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. (c) Use the data to develop an estimated regression ef 3 tion with both television advertising and newspaper advertising as the independent variables. Let xy represent the amount of teievision advertising. Let x represent the amount of newspaper advertising If required, round your answers to three decimal places. For subtractive or negative numbers use a minus sign even if there is a + sign before the blank. (Example: -300) Test whether each of the regression parameters 0,1, and 2 is equal to zero at a 0.05 level of significance. We conclude that 0=0. (d) How much of the variation in the sample values of weekly gross revenue does the model in part (c) explain? If required, round your answer to two decimal plact.s