has les dom inc A physical therapist wanted to know whether the mean step pulse of men was less Two sample T for Men vs Women ases, s b than the mean step pulse of women. She randomly selected 50 men and 80 women to N Mean StDev SE Mean participate in the study. Each subject was required to step up and down a 6-inch Men 50 112.9 11.8 1.7 he law platform. The pulse of each subject was then recorded. The following results were Women 80 118.8 14.5 1.6 obtained. 90% CI for mu Men - mu Women (-9.77, -2.03) T-Test mu Men = mu Women (vs