A sample of 15 female collegiate golfers was selected and the clubhead velocity (km/hr) while swinging a driver was determined for each one, resulting in the following data ("Hip Rotational Velocities During the Full Golf Swing," J. of Sports Science and Medicine, 2009: 296-299):

The corresponding z percentiles are

Construct a normal probability plot and a dotplot. Is it plausible that the population distribution is normal?

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69.0 69.7 72.7 80.3 81.0 85.0 86.0 86.3 86.787.7 89.3 90.7 91.0 92.5 93.0 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 .83