DS Q The regression line is used to predict the _ variable given the value of the _ _ variable. 31. Craig, a marketing executive for a microbrewery com- pany, wants to determine if there is a positive linear re- PDF lationship between advertising expenditures and sales for their new lite beer product, Less Ale. He randomly sam- ples data for the past 7 sales years and records the sample data in the following table, where advertising expenditure is measured in thousands and the beer sales in millions of OF dollars. Expenditure Sales Year (thousand $) (million $) 2013 35 38 2014 47 35 2015 65 49 2016 92 50 2017 55 40 2018 25 35 2019 82 44 a) Construct a scatter diagram. b) Calculate the sample correlation coefficient, r. c) Find / and interpret its meaning. d) Determine the regression equation, y'. e) Using the regression equation, predict the beer sales for the advertising budget expenditure of $50.000. D Is y' an interpolated or extrapolated value? Why? 32. A researcher working for The Sunglass Shack corporation 221 1:48 PM 2 10/27/2022