You are given the sample mean and the population standard deviation. Use this information to construct the90% and95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. Ifconvenient, use technology to construct the confidence intervals.

A random sample of 50 home theater systems has a mean price of $124.00. Assume the population standard deviation is $17.60.

Construct a90% confidence interval for the population mean.

The90% confidence interval is