阿摩線上測驗
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5.Suppose a data set contains 8 observations as follows 7.26, 7.27, 7.24, 7.29, 7.28, 7.25, 7.23 and 7.32.
Please test whether the mean of these observations is equal to 7.25 under a statistical significance level of
0.05. (
) (10%)