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

[answerhappygod]

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 45F. A
random sample of prices ($) for sleeping bags in this temperature
range was taken from Backpacker Magazine: Gear
Guide (Vol. 25, Issue 157, No. 2). Brand names include
American Camper, Cabela’s, Camp 7, Caribou, Cascade, and
Coleman.
80 90 100 120 75 37 30 23 100 110 105 95 105 60 110 120 95 90 60
70
(a) Use a calculator with mean and sample standard
deviation keys to verify that x = $83.75 and s
= $28.97.
(b) Using the given data as representative of the
population of prices of all summer sleeping bags, find a 90%
confidence interval for the mean price m of all summer
sleeping bags.