In a recent study, 25 males used a new weight loss supplement, and all but 6 of them experienced weight loss after 2 weeks. In the same study, 50 females used the same supplement, and all but 17 of them experienced weight loss after 2 weeks.

a). The new weight loss supplement was less effective on females in the study. That is because blank % of them failed to lose weight after two weeks, whereas only blank% of the males failed to lose weight after two weeks.