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

Race Age 20-24 5-34 35-44 45-555-6466-74 65-74 All Races White Black 180 180 199 199 199 217 217 218 227 227 229 229 230 223 221 217