Please give me correct answers 1. Fill in the blank: For these data, values for campaign cost that areless than the mean of the values for campaign cost tend to be pairedwith values for percentage increase in sales that areof the values for percentage increase in sales.Choose onethe mean2. According to the regression equation, for an increase of one milliondollars in advertising campaign cost, there is a corresponding increaseof how many percent in sales?3. From the regression equation, what is the predicted percentageincrease in sales when the advertising campaign cost is 3.45 milliondollars? (Round your answer to at least two decimal places.)4. From the regression equation, what is the predicted percentageincrease in sales when the advertising campaign cost is 3.95 milliondollars? (Round your answer to at least two decimal places.) 6:41AAwww-awn.aleks.comO REGRESSION AND CORRELATIONPredictions from the least-squares.An advertising firm wishes to demonstrate to its clients the effectivenessof the advertising campaigns it has conducted. The following bivariatedata on fifteen recent campaigns, including the cost of each campaign(in millions of dollars) and the resulting percentage increase in salesfollowing the campaign, were presented by the firm. Based on thesedata, we would compute the least-squares regression line to beP-6.24 + 0.15x, with x representing campaign cost and y representing theresulting percentage increase in sales. (This line is shown in Figure 1,along with a scatter plot of the data.)Campaign cost, Increase in sales(in millions ofdollars)y(рercent)2.966.904.086.982.016.522.376.602.956.593.456.8364.1.676.20621.206.483.626.731.756.572.096.83Figure 13.426.48Send data to ExcelAnswer the following:1. Fill in the blank: For these data, values for campaign cost that areless than the mean of the values for campaign cost tend to be pairedChoose onewith values for percentage increase in sales that are the meanof the values for percentage increase in sales.2. According to the regression equation, for an increase of one milliondollars in advertising campaign cost, there is a corresponding increase Uof how many percent in sales?3. From the regression equation, what is the predicted percentageincrease in sales when the advertising campaign cost is 3.45 milliondollars? (Round your answer to at least two decimal places.)4. From the regression equation, what is the predicted percentageincrease in sales when the advertising campaign cost is 3.95 milliondollars? (Round your answer to at least two decimal places.)?ExplanationCheckO 2021 McGraw-HII Education. All Rights Reserved. Terms of UseI Privacy I Accessibity

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Given: Regression equation y^=6.24+0.15x From the above equation, we can say that there is a…

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1. Fill in the blank: For these data, values for campaign cost that are less than the mean of the values for campaign cost tend to be paired with values for percentage increase in sales that are of the values for percentage increase in sales. Choose one the mean 2. According to the regression equation, for an increase of one million dollars in advertising campaign cost, there is a corresponding increase || of how many percent in sales? 3. From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 3.45 million dollars? (Round your answer to at least two decimal places.)

1. Fill in the blank: For these data, values for campaign cost that are less than the mean of the values for campaign cost tend to be paired with values for percentage increase in sales that are of the values for percentage increase in sales. Choose one the mean 2. According to the regression equation, for an increase of one million dollars in advertising campaign cost, there is a corresponding increase || of how many percent in sales? 3. From the regression equation, what is the predicted percentage increase in sales when the advertising campaign cost is 3.45 million dollars? (Round your answer to at least two decimal places.)

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.3: Least Squares Approximation

Problem 31EQ

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