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Example 14.1 (page 352) described NHANES survey data on the body mass index (BMI) of 654
young women.
The mean BMI in the sample was x = 26.8.
We treated these data as an SRS from a Normally distributed population with standard deviation
? = 7.5.
Suppose that we had an SRS of just 100 young women.
What would be the margin of error for 95% confidence?
A. 0.75
B. 1.47
C. 1.54
D. 1.23
Solution
B. 1.47

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