PGA Golf Scores At a recent PGA tournament (the Honda Classic at Palm Beach Gardens, Florida), the following scores were posted fo nine randomly selected golfers for two consecutive days. At a = 0.05, is there evidence of a difference in the mean scores for the two days? Assume the variables are normally distributed and use Un for the mean on Thursday minus the mean on Friday. Golfer 2 3 4 5 6. 8. Thursday 64 69 65 70 68 65 68 68 70 Friday 72 69 71 70 67 69 70 74 67

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