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Confidence Interval for Mean Difference

5. A study is run comparing HDL cholesterol levels between men who exercise regularly and those
who do not. The data are shown below.

Regular Exercise = Yes, N = 35,Mean = 48.5, Std Dev = 12.5

Regular Exercise = No, N =120, Mean = 56.9 ,Std Dev = 11.9

Generate a 95% confidence interval for the difference in mean HDL levels between men who
exercise regularly and those who do not.

Solution Summary

The solution provides step by step method for the calculation of confidence interval for the difference in mean HDL levels between men who exercise regularly and those who do not. Formula for the calculation and Interpretations of the results are also included.

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