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October 2, 2014

Homework Help: statistics

Posted by Mike on Monday, April 2, 2012 at 12:39pm.

The U.S. Department of Agriculture claims that the mean consumption of coffee by the person in the United States is 24.2 gallons per year. A random sample of 120 people in the United States shows that the mean coffee consumption is 23.5 gallons per year with a standard deviation of 3.2 gallons. At a=0.05, can you reject the claim?

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