Question
Two-sample t-test One way to measure a person's fitness is to measure their body fat percentage. Average body fat percentages vary by age, but according
Two-sample t-test One way to measure a person's fitness is to measure their body fat percentage. Average body fat percentages vary by age, but according to some guidelines, the normal range for men is 15-20% body fat, and the normal range for women is 20-25% body fat.Our sample data is from a group of men and women who did workouts at a gym three times a week for a year. Then, their trainer measured the body fat. The table below shows the data.Table 1: Body fat percentage data grouped by genderGroup Body Fat PercentagesMen 13.3 6.0 20.0 8.0 14.019.0 18.0 25.0 16.0 24.015.0 1.0 15.0 Women 22.0 16.0 21.7 21.0 30.026.0 12.0 23.2 28.0 23.0If the significance level (? = 0.05) calculate the t-test value?compare the calculated t-test with the t-critical (from the table) and make your decision.
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