Question
In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after months. Does the weight loss program have practical significance?
1)No, because the mean weight loss of 3.0 lb after one year does not seem to justify the program.
2)no, because the sample of 40 subjects was too small to determine if the program was useful.
1)No, because the mean weight loss of 3.0 lb after one year does not seem to justify the program.
2)no, because the sample of 40 subjects was too small to determine if the program was useful.
Answers
GPT-4o mini
To determine if the weight loss program has practical significance, we should consider context, including the amount of weight lost concerning health goals, the duration of the study, and individual circumstances.
Option 1 states that the mean weight loss of 3.0 lb after one year does not seem to justify the program. This suggests that, in a practical sense, losing only 3.0 lb may not be sufficient to impact an individual's overall health or well-being meaningfully, depending on their starting weight and health goals.
Option 2 points out that the sample size of 40 subjects may be too small to draw conclusions about the program's effectiveness. However, while sample size is an important factor in statistical significance, practical significance often relates more to the actual impact of the results rather than the number of participants.
Given these considerations, Option 1 is more aligned with assessing practical significance. A mean weight loss of 3.0 lb may not be substantial enough to demonstrate notable effectiveness for most individuals in a weight loss program.
Thus, the answer is:
1) No, because the mean weight loss of 3.0 lb after one year does not seem to justify the program.
Option 1 states that the mean weight loss of 3.0 lb after one year does not seem to justify the program. This suggests that, in a practical sense, losing only 3.0 lb may not be sufficient to impact an individual's overall health or well-being meaningfully, depending on their starting weight and health goals.
Option 2 points out that the sample size of 40 subjects may be too small to draw conclusions about the program's effectiveness. However, while sample size is an important factor in statistical significance, practical significance often relates more to the actual impact of the results rather than the number of participants.
Given these considerations, Option 1 is more aligned with assessing practical significance. A mean weight loss of 3.0 lb may not be substantial enough to demonstrate notable effectiveness for most individuals in a weight loss program.
Thus, the answer is:
1) No, because the mean weight loss of 3.0 lb after one year does not seem to justify the program.