Suppose that you have been hired by the commissioner of the LPGA to analyze the data for a presentation to be made at the annual LPGA Tour meeting. The commissioner has asked whether it would be possible to use these data to determine the performance measures that are the best predictors of a player?s average score. Use the methods presented in this and previous chapters to analyze the data. Prepare a report that summarizes your analysis, including key statistical results, conclusions, and recommendations.?

The Ladies Professional Golf Association (LPGA) maintains data on performance for members of the LPGA Tour. Scoring average is generally considered the most important statistic in term of a player?s success. To investigate the relationship between scoring average and variables such as driving distance, driving accuracy, greens in regulation, sand saves, and average putts per round, year-end performance data for 140 players on the LPGA Tour for 2012 are contained in the DATAfile named TourLPGA2012 (LPGA website). Each row of the data set corresponds to a LPGA Tour player. Descriptions for the variables in the data set follow.?

Scoring Average The average number of strokes per completed round. DrDist (Driving Distance) The average number of yards per measured drive. On the LPGA Tour driving distance is measured on two holes per round. Care is taken to select two holes which face in opposite directions to counteract the effect of wind. Drives are measured to the point at which they come to rest regardless of whether they are in the fairway or not.?

DrAccu (Driving Accuracy) The percentage of time a tee shot comes to rest in the fairway (regardless of club). Driving accuracy is measured on every hole, excluding par 3s.?

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Scoring Average The average number of strokes per completed round. DrDist (Driving Distance) The average number of yards per measured drive. On the LPGA Tour driving distance is measured on two holes per round. Care is taken to select two holes which face in opposite directions to counteract the effect of wind. Drives are measured to the point at which they come to rest regardless of whether they are in the fairway or not. DrAccu (Driving Accuracy) The percentage of time a tee shot comes to rest in the fairway (regardless of club). Driving accuracy is mea- sured on every hole, excluding par 3s. GIR (Greens in Regulation) The percentage of time a player was able to hit the green in regulation. A green is considered hit in regulation if any portion of the ball is touching the putting surface after the GIR stroke has been taken. The GIR stroke is determined by subtracting 2 from par (1st stroke on a par 3, 2nd on a par 4, 3rd on a par 5). In other words, a green is considered hit in regulation if the player has reached the putting surface in par minus two strokes. Sand Saves The percentage of time a player was able to get “up and down" once in a greenside sand bunker (regardless of score). “Up and down" indicates it took the player 2 shots or less to put the ball in the hole from a greenside sand bunker. PPR (Putts per Round) The average number of putts per round.