The Professional Golfers Association reported the average distance that 199 professional golfers drove the ball (in yd) during a week in 2015. Here is a histogram of those drives. Assume this is a representative sample of all professional golfers.

a) Find a 95% confidence interval for the mean of these drive distances.
b) Do you think that this interval captures the mean of golf drives for all golfers in 2015? Discuss.
c) These data are the mean drive distances for each golfer during a week. Should that be a concern in interpreting the interval?

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30 25 20 15 = 10 # of Golfers 5 0 Count Mean StdDev 199 288.69 yd 9.28 yd 무 260 270 280 290 300 310 320 Average Drive Length (yds)