A music teacher claims that the mean scores on a music assessment test for eighth grade boys
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A music teacher claims that the mean scores on a music assessment test for eighth grade boys and girls are equal. The mean score for 13 randomly selected boys is 142 with a standard deviation of 49 , and the mean score for 15 randomly selected girls is 156 with a standard deviation of 42 . At \(\alpha=0.1\), can you reject the teacher's claim? Assume the populations are normally distributed and the population variances are equal.
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9781292260464
7th Global Edition
Authors: Betsy Farber, Ron Larson
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