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

4848

business days, the mean closing price of a certain stock was

$122.94122.94.

Assume the population standard deviation is

$11.3611.36.

The 90% confidence interval is

(Round to two decimal places as needed.)