help please

5. {-14.42 Points] DETAILS BBUNDERSTAT12 7.2.014.M|.S. MY NOTES ASK YOUR TEACHER How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in temperatures from 20F to 45\"F. A random sample of prices (3} tor sleeping bags in this temperature range is given below. Assume that the population of): values has an approximately normal distribution. i USE SALT (a) Use a calculator with mean and sample standard deviation keys to find the sample mean price E and sample standard deviation s. [Round your answers to four decimal places.) i=3: 3:3: (b) Using the given data as representative of the population of prices of all summer sleeping bags. nd a 90% condence interval for the mean price p, of all summer sleeping bags. [Round your answers to two decimal places.) lower limit 3 upper limit 3