Table 10.3.7 gives mean serum cholesterol levels (given in milligrams per deciliter) by race and age for

Question:

Table 10.3.7 gives mean serum cholesterol levels (given in milligrams per deciliter) by race and age for the adult population in the United States between 1978 and 1980 (source: €œReport of the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults,€ Arch. Intern. Med. 148, January 1988).
Test at the 0.01 level whether the true mean cholesterol levels for adult population in the United States between 1978 and 1980 are the same.
Table 10.3.7