February 25, 2017

Homework Help: statistics

Posted by Amy on Thursday, November 29, 2012 at 5:09pm.

Suppose 100 randomly selected customers were asked to rate a particular service they recently had on a scale of 0 to 10. The sample mean rating was found to be 7.3. (Assume the population standard deviation of all ratings in the population of customers is 0.8.) Using all this information, estimate the average rating of this service for all customers.

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