An NHANES report gives data for 654 women aged 20 to 29 years. The mean BMI of t

Question

An NHANES report gives data for 654 women aged 20 to 29 years. The mean BMI of these 654 women was x = 26.8. On the basis of this sample, we want to estimate the mean BMI µ in the population of all 20.6 million women in this age groupWhich one of these is NOT a ‘simple conditions?’

a.In the population of women aged 20 to 29, BMI follows a Normal distribution

b.we will treat the NHANES sample as an SRS with no bias issues.

c.we will assume the sample Perfectly represents the population it came from

d.In the population of women aged 20 to 29, BMI has known standard deviation = 7.5.

Explanation / Answer

An NHANES report gives data for 654 women aged 20 to 29 years. The mean BMI of these 654 women was x = 26.8. On the basis of this sample, we want to estimate the mean BMI µ in the population of all 20.6 million women in this age group

In the population of women aged 20 to 29, BMI has known standard deviation = 7.5.

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