Mathematics, 31.07.2019 03:20 book0001
Test the following claim. identify the null hypothesis, alternative hypothesis, test statistic, critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. tests of older baseballs showed that when dropped 20 ft onto a concrete surface, they bounced an average of 239.7 cm. in a test of 50 new baseballs, the bounce heights had a mean of 230.5 cm. assume that the standard deviation of bounce heights of all new baseballs is 3.8 cm. use a 0.01 significance level to test the claim that the new baseballs have bounce heights with a mean different from 239.7 cm. are the new baseballs different?
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