An advertising firm wishes to demonstrate to its clients the effectiveness of the advertising campaigns it...
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An advertising firm wishes to demonstrate to its clients the effectiveness of the advertising campaigns it has conducted. The following bivariate data on twelve recent campaigns, including the cost of each campaign (in millions of dollars) and the resulting percentage increase in sales following the campaign, were t presented by the firm. Based on these data, we would compute the least-squares regression line to be y-6.27+0.14x, with x representing campaign cost and y representing the resulting percentage increase in sales. (This line is shown below, along with a scatter plot of the data.) Campaign cost, x (in millions of dollars) 3.02 1.53 3.62 2.00 3.38 2.13 1.58 2.24 3.05 1.31 3.90 3.31 Increase in sales, y (percent) 6.63 6.63 6.68 6.81 6.79 6.45 Increase in sales (percent) 6.21 6.63 6.85 6.46 6.96 6.47 Send data to calculator v Send data to Excel Based on the firm's data and the regression line, answer the following. Campaign cost (in millions of dollars) Esp Based on the firm's data and the regression line, answer the following. (a) From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 2.00 million dollars? Round your answer to two or more decimal places. (b) From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 2.63 million dollars? Round your answer to two or more decimal places. 0 An advertising firm wishes to demonstrate to its clients the effectiveness of the advertising campaigns it has conducted. The following bivariate data on twelve recent campaigns, including the cost of each campaign (in millions of dollars) and the resulting percentage increase in sales following the campaign, were t presented by the firm. Based on these data, we would compute the least-squares regression line to be y-6.27+0.14x, with x representing campaign cost and y representing the resulting percentage increase in sales. (This line is shown below, along with a scatter plot of the data.) Campaign cost, x (in millions of dollars) 3.02 1.53 3.62 2.00 3.38 2.13 1.58 2.24 3.05 1.31 3.90 3.31 Increase in sales, y (percent) 6.63 6.63 6.68 6.81 6.79 6.45 Increase in sales (percent) 6.21 6.63 6.85 6.46 6.96 6.47 Send data to calculator v Send data to Excel Based on the firm's data and the regression line, answer the following. Campaign cost (in millions of dollars) Esp Based on the firm's data and the regression line, answer the following. (a) From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 2.00 million dollars? Round your answer to two or more decimal places. (b) From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 2.63 million dollars? Round your answer to two or more decimal places. 0
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Therefore Required sample correlation coefficient r 0... View the full answer
Related Book For
Federal Taxation 2016 Comprehensive
ISBN: 9780134104379
29th edition
Authors: Thomas R. Pope, Timothy J. Rupert, Kenneth E. Anderson
Posted Date:
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