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The third National Health and Nutrition Examination Survey collected body fat percentage (BF) data from 13,601 subjects whose ages are 20 to 80. A summary
The third National Health and Nutrition Examination Survey collected body fat percentage (BF) data from 13,601 subjects whose ages are 20 to 80.
A summary table for these data is given below. (Note that BF is given asmeanstandarderror.)
| Gender | n | BF(%) |
| Men | 6,580 | |
| Women | 7,021 |
Construct a 95% confidence interval for the difference in average body fat percentages between men and women. Give your answers to 3 decimal places.
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