file. (The first five and last five observations are listed in the table.) Driving Driving Driving Distance Accuracy Performance Rank Player (yards) (%) Index Woods 316.1 54.6 3.58 Perry 304.7 63.4 3.48 IAWNG Gutschewski 310.5 57.9 3.27 Wetterich 311.7 56.6 3.18 Hearn 295.2 68.5 2.82 36 Senden 291 66 1,31 37 Mickelson 300 58.7 1.30 38 Watney 298.9 59.4 1.26 39 Trahan 295.8 61.8 1,23 40 Pappas 309.4 50.6 1.17 Source: Wiseman, F., et al. "A new method for ranking total driving performance on the PGA Tour," The Sport Journal, Vol. 10, No. 1, Winter 2007 (Table 2). a. Write the equation of a straight-line model relating driv- ing accuracy (y) to driving distance (x). b. Fit the model, part a, to the data using simple linear regression. Give the least squares prediction equation. c. Interpret the estimated y-intercept of the line. d. Interpret the estimated slope of the line. e. In Exercise 2.132 (p. 106), you were informed that a professional golfer, practicing a new swing to increase his average driving distance, is concerned that his day ing accuracy will be lower. Which of the two estimates y-intercept or slope, will help you determine if the golfer's concern is a valid one? Explain.11.21 Ranking driving performance of professional golfers. Refer to The Sport Journal (Winter 20 07) study of a new PEA method for ranking the total driving performance of golf- ers on the Professional Golf Association (PGA) tour, Exercise 2.50 (p. 72). Reca that the method computes a driving performance index based on a golfer's average driving distance (yards) and driving accuracy (percent of drives that [and in the fairway). Data for the top 40 PGA golfers (as ranked by the new method) are saved in the