A) From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 3.99 million dollars? Round two decimals or moreB) From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 2.10 million dollars? Round two or more decimals

An advertising firm wishes to demonstrate to its clients the effectiveness of the advertising campaigns it has conducted. The following bivariate data on twelve Esp recent campaigns, including the cost of each campaign (in millions of dollars) and the resulting percentage increase in sales following the campaign, were presented by the firm. Based on these data, we would compute the least-squares regression line to be y = 6.13 +0.19x, 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 Increase in sales, y (in millions of dollars) (percent) 3.82 6.76 3.19 6.48 3.36 6.83 X 2.34 6.61 X 1.49 6.65 X Increase In sales (percent) 4.05 7.01 X 64 4 3.05 X 6.86 62 X 2.12 6.77 1.44 6.32 1.62 6.19 15 2 25 35 2.84 6.63 Campaign cost 2.10 6.43 (in millions of dollars)