申論題

7. In Saracho's study, the mean score achieved by a sample of 16 sixth-grade girls who had received computer-assisted instruction was 7.08 with a standard deviation s of 1.93. Assuming that the sample is representative of the population and assuming that the population is normally distributed, compute the 95% confidence interval for the mean μ of the population. (The critical value of t is 2.131.)
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