In a survey of adults with diabetes, the average body mass index (BMI) in a sample of
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In a survey of adults with diabetes, the average body mass index (BMI) in a sample of 1924 women was 31.1 with a standard deviation of 0.2. The BMI in a sample of 1559 men was 30.4, with a standard deviation of 0.6.
a. Construct a 99% confidence interval for the difference in the mean BMI between women and men with diabetes.
b. Does the confidence interval contradict the claim that the mean BMI is the same for both men and women with diabetes?
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