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 50 home theater systems has a mean price of $120.00. Assume the population standard deviation is $15.50
Construct a 90% confidence interval for the population mean
The 90% confidence interval is
(Round to two decimal places as needed.)