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Problem 1: The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in a study of

Problem 1:The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in a study of risk factors for obesity.Body mass index is measured as the ratio of weight in kilograms to height in meters squared.

a. Generate a 95% confidence interval estimate of the true BMI.

b. How many subjects would be needed to ensure that a 95% confidence interval estimate of BMI had a margin of error not exceeding 2 units?

Data: 25 27 31 33 26 28 38 41 24 32 35 40

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