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How much does a sleeping bag cost? Let's say you want a sleeping bag that should...

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Statistics

How much does a sleeping bag cost? Let's say you want a sleepingbag that should keep you warm in temperatures from 20°F to 45°F. Arandom sample of prices ($) for sleeping bags in this temperaturerange is given below. Assume that the population ofxvalues has an approximately normal distribution.

1101151208570653023100110
105951056011012095906070

(a) Use a calculator with mean and sample standard deviationkeys to find the sample mean price x and sample standarddeviation s. (Round your answers to two decimalplaces.)

x =$
s =$


(b) Using the given data as representative of the population ofprices of all summer sleeping bags, find a 90% confidence intervalfor the mean price μ of all summer sleeping bags. (Roundyour answers to two decimal places.)

lower limit    $
upper limit    $

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