Examlex
The weights of a random sample of 25 women between the ages of 25 and 34 had a standard deviation of 28
pounds. The weights of a random sample of 41 women between the ages of 55 and 64 had a standard
deviation of 21 pounds. Construct a 95% confidence interval for are the variances of
the weights of women between the ages 25 and 34 and the weights of women between the ages of 55 and 64
respectively.
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