are low fat diets or low carb diets more effective for weight loss? a sample of 70 subjects went on a low carbohydrate diet for 6 months. a the end of that time, the sample mean weight loss was 10.5 pounds with a sample standard deviation of 7.09 pounds. a second sample of 76 subjects went on a low fat diet. their sawith a sample mean weight loss was 18.0 with a standard deviation of 7.26. test the claim that the mean weight loss differed between two diets use the level 0.05
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