Question: A sample of mean X = 66, and standard deviation S = 16, and size n = 11 is used to estimate a population parameter.

A sample of mean X = 66, and standard deviation S = 16, and size n = 11 is used to estimate a population parameter. Assuming that the population is normally distributed, construct a 95% confidence interval estimate for the population mean, . Use t_(/2)=2.228.

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