=+47. A sample of 15 female collegiate golfers was selected, and the clubhead velocity (km/hr) of each golfer while swinging a driver was determined, 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 21.83 21.28 20.97 20.73 20.52 20.34 20.17 0.0 0.17 0.34 0.52 0.73 0.97 1.28 1.83