Question: ( 1 p ) The data set ( 7 5 , 8 5 , 5 8 , 7 2 , 7 0 , 7 5

(1p) The data set (75,85,58,72,70,75) is a random sample from the
normal distribution No(,). Determine a 95% two-sided confidence
interval for the mean .
(1p) The data set (75,85,58,72,70,75) is a random sample from the

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