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Do diets work? Refer to Exercise 63. Subjects in the low-carb diet group lost
Chapter 4, Problem 73(choose chapter or problem)
Do diets work? Refer to Exercise 63. Subjects in the low-carb diet group lost significantly more weight than subjects in the low-fat diet group during the first six months. At the end of a year, however, the average weight loss for subjects in the two groups was not significantly different.42 (a) Why did researchers randomly assign the subjects to the diet treatments? (b) Explain to someone who knows little statistics what lost significantly more weight means. (c) The subjects in the low-carb diet group lost an average of 5.1 kg in a year. The subjects in the low-fat diet group lost an average of 3.1 kg. Explain how this information could be consistent with the fact that weight loss in the two groups was not significantly different.
Questions & Answers
QUESTION:
Do diets work? Refer to Exercise 63. Subjects in the low-carb diet group lost significantly more weight than subjects in the low-fat diet group during the first six months. At the end of a year, however, the average weight loss for subjects in the two groups was not significantly different.42 (a) Why did researchers randomly assign the subjects to the diet treatments? (b) Explain to someone who knows little statistics what lost significantly more weight means. (c) The subjects in the low-carb diet group lost an average of 5.1 kg in a year. The subjects in the low-fat diet group lost an average of 3.1 kg. Explain how this information could be consistent with the fact that weight loss in the two groups was not significantly different.
ANSWER:Step 1 of 5
From Exercise 63,
Number of obese adults,
It’s given that, at the end of a year, however, the average weight loss for subjects in the two groups was not significantly different. Let’s determine the following.