Are clinical triate tative of the American population Indivi

Are clinical triate tative of the American population? Individuels of different ethnicities are somewhat more genetically variable than those of the same ethnicity and may respond to treatments differently. The FDA has recently requested that every effort be made to include individuals of all major ethnic backgrounds when enrolling subjects in clinical trials. A randomly chosen article in the New England Journal of Medicine describes the efficacy of calcium and vitamin D supplementation in preventing hip and other fractures in healthy postmenopausal women. Here is the breakdown by major ethnic group of the subjects whose ethnicity is known, along with the percent of individuals from each ethnicity in the general American population:8 Did this study successfully match the ethnic diversity of the American population?

Solution

Here the hypothesis of testing is,

Null Hypothesis, H₀: There is no significant difference between the ethinic diversity of the American Population and the count in study.

From the Minitab output, we can see that, p-value = 0.000 < 0.05. Hence we reject H₀ at 5% level of significance and conclude that the study did not match the ethinic diversity of the American Population.