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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population

You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.

From a random sample of 63 dates, the mean record high daily temperature in a certain city has a mean of 85.79F.

Assume the population standard deviation is 13.69F.

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The 90% confidence interval is ( ______ , _________ )

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