How much does a sleeping bag cost Let s say you want a sleeping bag that should keep you warm in temperatures from 20 F to 45 F

Question

How much does a sleeping bag cost Let s say you want a sleeping bag that should keep you warm in temperatures from 20 F to 45 F A random sample of prices for sleeping bags in this temperature range is given below Assume that the population of x values has an approximately normal distribution 60 105 90 115 120 70 60 30 23 100 110 95 105 60 110 120 95 90 60 70 LUSE SALT a Use a calculator with mean and sample standard deviation keys to find the sample mean price x in dollars and sample standard deviation s in dollars Round your standard deviation to four decimal places X S b Using the given data as representative of the population of prices of all sleeping bags find a 90 confidence interval for the mean priceu in dollars of all sleeping bags Enter your answer in the form lower limit to upper limit Include the word to Round your numerical values to two decimal places

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