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