Question: Revisiting the comparison of LDL levels for males and females. In Exercise 7.62 (page 467), the LDL levels for males and females were compared using

Revisiting the comparison of LDL levels for males and females. In Exercise 7.62 (page 467), the LDL levels for males and females were compared using the two-sample t procedures that do not assume equal standard deviations. Compare the means using a significance test and find the 95%

confidence interval for the difference using the pooled methods. How do the results compare with those you obtained in Exercise 7.62?

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