February 25, 2017

Homework Help: Statistics

Posted by lola on Thursday, April 19, 2012 at 5:13pm.

A large television repair service claims that its average repair charge is $124. Suspecting that the average charge is higher, a consumer group randomly choose a sample of 35 statements for tv repairs done by the repair service and found the mean was $125.50 and s = 2.25. Test the claim at the .05 level of significance

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