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below is the query , thank you!! Suppose that X1, . .., X10 are random variables each an observation of the same distribution X ~

below is the query , thank you!!

Suppose that X1, . .., X10 are random variables each an observation of the same distribution X ~ N(u, 4), where u is unknown. Suppose that the following values $1, X2, ..., In are recorded: 12.4, 3.5, 9.8, 11.9, 16.5, 9.6, 10.9, 11.1, 2.9, 5.8 i) Find a 95% confidence interval for u. ii) Find a 99% confidence interval for M

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