Question: A simple random sample of size n = 210 is drawn from a population. The sample mean is found to be x = 20.1, and

A simple random sample of size n = 210 is drawn from a population. The sample mean is found to be x̄ = 20.1, and the sample standard deviation is found to be s = 3.2. Construct a 90% conﬁdence interval for the population mean. Construct the appropriate conﬁdence interval.

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