February 26, 2017

Homework Help: Statistics

Posted by Jared on Sunday, June 20, 2010 at 1:30pm.

How much does a sleeping bag cost? Let us say you want a sleeping bag that should keep you warm in temperatures from 20ºF to 45ºF. A random sample of prices ($) for sleeping bags in this temperature range was taken from a magazine.
93 106 86 109 81 111 118 117 118 116
For these sample data, the mean is and the sample standard deviation is Using the given data as representative of the population of prices of all summer sleeping bags, find a 95% confidence interval for the mean price of all summer sleeping bags. Round your answer to two decimal places.

81.02 to 106.78
95.57 to 106.78
92.62 to 115.43
95.57 to 115.43
92.62 to 106.78

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