Refer to The Sport Journal (Winter 2007) article on a new method for ranking the driving performance of PGA golfers, presented in Exercise.

In exercise

Recall that the method incorporates a golfer's average driving distance (yards) and driving accuracy (percentage of drives that land in the fairway) into a driving performance index. Data on these three variables for the top 40 PGA golfers are saved in the PGADRIVER file. Determine which of the variables-driving distance, driving accuracy, and driving performance index-are approximately normally distributed.

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Driving Driving Driving Distance Accuracy Performance Rank Player (yards) (%) Index 1Woods 2 Perry 3 Gutschewsi 310.5 4 Wetterich 5 Hearn 316.1 304.7 54.6 63.4 57.9 56.6 68.5 3.58 3.48 3.27 3.18 2.82 311.7 295.2 36 Senden 37 Mickelson 38 Watney 39 Trahan 40 Pappas 291 300 298.9 295.8 309.4 58.7 59.4 61.8 50.6 1.31 1.30 1.26 1.23 1.17