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in previous tests baseballs were dropped 24 ft onto a concrete surface, and they bounced an average 92.84 in. In a test of a sample of 40 new balls the bounce heights has a mean of 92.67 and standard deviation 1.79 in. Use a 0.05 significance level to determine whether there is suffcient evidence to support the clain 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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Statistics and Probability, Statistics

Category:- Statistics and Probability
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