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We have the survey data on the body mass index (BMI) of 659 young women. The...

We have the survey data on the body mass index (BMI) of 659 young women. The mean BMI in the sample was x¯=25.5. We treated these data as an SRS from a Normally distributed population with standard deviation σ=7.8 .

Give confidence intervals for the mean BMI and the margins of error for 90%, 95%, and 99% confidence.

Math   Statistics-And-Probability   
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Answer #1

Hello Sir/ Mam

Given that:

Mean 25.5
n 659
SD 7.80

90% Confidence Interval

95% Confidence Interval

99% Confidence Interval

Also, Margin of errors:

CI MOE
90% 0.4998
95% 0.5955
99% 0.7827

I hope this solves your doubt.

Do give a thumbs up if you find this helpful.

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