Mathematics, 04.06.2020 15:01 zoeybuch5
Tennis elbow is thought to be aggravated by the impact experienced when hitting the ball. The article "Forces on the Hand in the Tennis One-Handed Backhand" (Int. J. of Sport Biomechanics (1991) reported the force (N) on the hand just after impact on a one- handed backhand drive for six advanced players and for eight intermediate players.
Advanced 44.70 26.31 55.75 28.54 46.99 39.46
Intermediate 15.58 19.16 24.13 10.56 32.88 21.47 14.32 33.09
1. Do the data shown above indicate that the mean force after impact is greater for advanced tennis players than it is for intermediate players?
2. Do a hypothesis test at .05 confidence level.
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