Question: A simple random sample of size (n=23) is drawn from a population that is normally distributed. The sample mean is found to be (bar{x}=67), and

A simple random sample of size $n=23$ is drawn from a population that is normally distributed. The sample mean is found to be $\bar{x}=67$, and the sample standard deviation is found to be $s=11$. Construct a $95 \%$ confidence interval about the population mean.

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