Question
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.
Homework Answers
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.
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