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Mathematics, 15.04.2020 04:20 melissapulido198
A group of 78 people enrolled in a weight-loss program that involved adhering to a special diet and to exercise daily. After six months, their mean weight loss was 25 pounds with a sample standard deviation of 9 pounds. The second group of 43 people went on the same diet but did not exercise. After six months, their mean weight loss was 14 pounds with a standard deviation of 7 pounds.
Find a 95% confidence interval for the mean difference between the weight losses.
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A group of 78 people enrolled in a weight-loss program that involved adhering to a special diet and...
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