Mathematics, 04.07.2021 14:00 PlzHelpMeOutKam3919
Suppose that the mean of a random variable X is unknown but the
variance for X is known to be 120. Should we reject the null hypothesis 0: = 20
in favor of alternative hypothesis 1: ≠ 20 at 5% level of significance, if a random
sample of 70 observations yields mean 15.
Answers: 2
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Suppose that the mean of a random variable X is unknown but the
variance for X is known to be 120....
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