所屬科目：研究所、轉學考(插大)◆統計學
3.Assume X follows an exponential distribution with a mean. This function can be described as follows:What is the expected value of X given X ＞1? (10%)
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%)
) (10%)
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. This function can be described as follows: