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In previous tests, baseballs were dropped 24ft onto a concrete surface, and they bounced an average of 92

Statistics Sep 29, 2020

In previous tests, baseballs were dropped 24ft onto a concrete surface, and they bounced an average of 92.84% in. In a test of a sample of 40 new balls, the bounce had a mean of 92.67 in. and a standard deviation of 1.79 in. Use a 0.05 significance level to determine whether there is sufficient evidence to support the clam that the new balls have bounce heights with a mean different from 92.84 in. Does it appear that the new baseballs are different?

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