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August 28, 2015

Homework Help: statistics

Posted by martha on Thursday, July 31, 2014 at 6:12pm.

The following list is a sampling of the costs of various statistics textbooks used at several colleges. Give the upper confidence limit for a 95% confidence interval estimate for the mean cost of all statistics textbooks.
109.95; 92.00; 96.70; 84.85; 92.60; 84.45; 90.95; 77.00; 75.50

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