A step pulse test is underway where 30 subjects of each sex have their pulse measured ...

     A step   pulse test is underway where 30 subjects of each sex have their pulse   measured after stepping up onto a 6 inch step, then down    for 3 minutes. The premise of   the test is that men's mean step pulse will be lower than women's. Test the   premise    at α = .05.    xbar s   Men 112 11.3   Women 118 14.2