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. If convenient
Question Description
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. If convenient, use technology to construct the confidence intervals.
A random sample of 4040
home theater systems has a mean price of
$134.00134.00.
Assume the population standard deviation is
$15.5015.50.
Construct a 90% confidence interval for the population mean.
The 90% confidence interval is (nothing,nothing).
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