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A sample of 15 female collegiate golfers was selected and the clubhead velocity

ID: 3268445 • Letter: A

Question


A sample of 15 female collegiate golfers was selected and the clubhead velocity (kn/hr) while swinging a driver was determined for each one, resulting in the following data ("Hip Rotational Velocities During Full Golf Swing", J. of Sports Science and Medicine, 2009: 296-299) 69.0 69.7 72.7 80.3 81.0 85.0 86.0 86.3 86.7 87.7 89.3 90.7 91.0 92.5 93.0 The corresponding z percentiles are: -1.83 -1.28 -0.97 -0.73 -0.52 -0.34 -0.17 0.0 0.17 0.34 0.52 0.73 0.97 1.28 1.83 Below is a normal probability plot. Is it plausible that the population is normal? Explain how you know.

Explanation / Answer

As because the data in normal quantile plot does not look linear, it does not appear plausible that data come from a normal distribution.

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