5.4 Do heavier people burn more energy? We have data on the lean body mass and resting metabolic rate for 12 women who are subjects in a study of dieting. Lean body mass, given in kilograms, is a person's weight leaving out all fat. Metabolic rate, in calories burned per 24 hours, is the rate at which the body consumes energy.

Mass 1 36.r 54.6 48.5 42.0 50.6 42.0 40.3 33.1 42.4 34.5 51.1 41.2 Rate i 995 1425 1396 1418 1502 1256 1189 913 1124 1052 1347 1204

(a) Make a scatterplot that shows how metabolic rate depends on body mass. There is a quite strong linear relationship, with correlation r = 0.876.