Question

In a recent study,100 males used a new weight-loss supplement, and 72 of them experienced weight loss after two weeks. In the same study,50 females used the same supplement, and

40 of them experienced weight loss after two weeks.

Fill in the blanks of the statement below to make the statement the most reasonable possible.

The new weight-loss supplement was less effective on ?males females in the study because

%

of them failed to lose weight after two weeks, whereas only

%

of the ?males females failed to lose weight after two weeks.

Answer 1

Percentage of males who lost weight = number of males who had weight loss/total number of males in the study

= 72/100 = 72%

Percentage of males who did not lose weight = 100% - 72% = 28%

Percentage of females who lost weight = number of females who had weight loss/total number of females in the study

= 40/50 = 80%

Percentage of females who did not lose weight = 100% - 80% = 20%

So, the supplement was more effective on females as compared to males.

The given statement can be completed, as follows:

The new weight-loss supplement was less effective on males in the study because 28% of them failed to lose weight after two weeks, whereas only 20% of the females failed to lose weight after two weeks.