Lets assume the average speed of a serve in womens tennis is around 118 mph, with a
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Let’s assume the average speed of a serve in women’s tennis is around 118 mph, with a standard deviation of 12 mph. We recruit 100 amateur tennis players to use our new training method this time, and after 6 months we calculate a group mean of 123 mph.
a. Using a 95% confidence interval, test the hypothesis that our method makes a difference.
b. Compute the effect size and describe its strength.
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a Standard error is calculated as Now we can calculate ...View the full answer
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Related Book For
Essentials Of Statistics For The Behavioral Sciences
ISBN: 9781464107771
3rd Edition
Authors: Susan A. Nolan
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