Question: A simple random sample of size n = 12 is drawn from a population that is normally distributed. The sample mean is found to be

A simple random sample of size n = 12 is drawn from a population that is normally distributed. The sample mean is found to be x̄ = 45, and the sample standard deviation is found to be s = 14. Construct a 90% conﬁdence interval for the population mean. Construct the appropriate conﬁdence interval.

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