You are given the sample mean and the population standard deviation. Use this information to construct the90% and95% confidence intervals for the population mean. Which interval iswider? Ifconvenient, use technology to construct the confidence intervals.

A random sample of 31

31 gas grills has a mean price of $646.60. Assume the population standard deviation is $58.30

The90% confidence interval is (__,__).

(Round to one decimal place asneeded.)

The95% confidence interval is (__,__).

(Round to one decimal place asneeded.)

Which interval iswider? Choose the correct answer below.

The95% confidence interval

The90% confidence interval