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A science teacher claims that the mean scores on a science assessment test for grade four boys and girls are equal. The mean score for
A science teacher claims that the mean scores on a science assessment test for grade four boys and girls are equal. The mean score for 13 randomly selected boys is 151 with a standard deviation of 36, and the mean score for 15 randomly selected girls is 149 with a standard deviation of 34. At = 0.01, can you reject the teacher's claim? Assume the populations are normally distributed and the population variances are equal.
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