Chapter 11 10)Are low-fat diets or low-carb diets more effective for weight loss? A sample of 76 subjects went on a low-carbohydrate diet for six months. At the end of that time, the sample mean weight loss was 4.6 kilograms with a sample standard deviation of 7.07 kilograms. A second sample of 78 subjects went on a low-fat diet. Their sample mean weight loss was 2.6 kilograms with a standard deviation of 5.83 kilograms. Can you conclude that the mean weight loss of subjects having low-carb diets is less than the mean weight loss of subjects having low-fat diets? Use 0.01 level (a)State the appropriate null and alternate hypotheses. (b)Compute the P-value. (c)Determine whether to reject Null hypothesis

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter 11
10)Are low-fat diets or low-carb diets more effective for weight loss? A sample of 76 subjects
went on a low-carbohydrate diet for six months. At the end of that time, the sample mean weight
loss was 4.6 kilograms with a sample standard deviation of 7.07 kilograms. A second sample of
78
subjects went on a low-fat diet. Their sample mean weight loss was 2.6 kilograms with a
standard deviation of 5.83 kilograms. Can you conclude that the mean weight loss of subjects
having low-carb diets is less than the mean weight loss of subjects having low-fat diets? Use
0.01 level
(a)State the appropriate null and alternate hypotheses.
(b)Compute the P-value.
(c)Determine whether to reject Null hypothesis
(d)State a conclusion.
11
Transcribed Image Text:Chapter 11 10)Are low-fat diets or low-carb diets more effective for weight loss? A sample of 76 subjects went on a low-carbohydrate diet for six months. At the end of that time, the sample mean weight loss was 4.6 kilograms with a sample standard deviation of 7.07 kilograms. A second sample of 78 subjects went on a low-fat diet. Their sample mean weight loss was 2.6 kilograms with a standard deviation of 5.83 kilograms. Can you conclude that the mean weight loss of subjects having low-carb diets is less than the mean weight loss of subjects having low-fat diets? Use 0.01 level (a)State the appropriate null and alternate hypotheses. (b)Compute the P-value. (c)Determine whether to reject Null hypothesis (d)State a conclusion. 11
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