(Steps Shown) A tutor for the SAT exam claims that his students have an average score higher than 1020. A sample of 20 of his students had a mean score 1040
Question: A tutor for the SAT exam claims that his students have an average score higher than 1020. A sample of 20 of his students had a mean score 1040 with a standard deviation of 207. At the alpha = .05 significance level, do we reject or not reject the null hypothesis?
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