question archive The body mass index (BMI) for a sample of men and a sample of women are given below
The body mass index (BMI) for a sample of men and a sample of women are given below
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The body mass index (BMI) for a sample of men and a sample of women are given below. Assume the samples are simple random samples obtained from populations with normal distributions.
| Men | 23.6 | 32.5 | 21.2 | 25.5 | 25.6 | 32.3 | 32.4 | 30.3 | 26.1 | 21.5 | |
| Women | 18.8 | 20.7 | 24.9 | 30.7 | 18.5 | 23.6 | 18.5 | 30.7 | 17.4 |
24.3 |
A. Construct a 95% confidence interval estimate of the standard deviation of BMIs for men. ? < σ men < ?
B. Construct a 95% confidence interval estimate of the standard deviation of BMIs for women. ? < σ women < ?
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