Question: Using the Coronary Heart Disease data set (a) estimate the mean age and the standard deviation for individuals with coronary heart disease (????C). (b) estimate

Using the Coronary Heart Disease data set

(a) estimate the mean age and the standard deviation for individuals with coronary heart disease (????C).

(b) estimate the mean age and the standard deviation for individuals without coronary heart disease (????NC).

(c) test ????0 ∶ ????C = ????NC at the ???? = 0.01 level.

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