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July 26, 2014

Homework Help: statistics

Posted by Anonymous on Saturday, November 10, 2012 at 11:01pm.

. A new diet is claimed to increase the speed of weight loss. A study with a large number
of volunteers showed a mean weight loss of 3.5 pounds in a week. A random sample of 8
volunteers followed the diet and recorded their weight loss at the end of the week. The
results recorded showed a mean of 3.4 pounds and a standard deviation of 0.2.
Using a valid distribution, test at the 5 % level whether the new diet is overstating the
mean weight loss.

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