To investigate whether the consumption of beetroot juice enhances exercise performance, a researcher selected a random sample of 50 student athletes from all the student athletes at a college. The athletes in the
sample were randomly assigned to one of two groups. In one group, 25 athletes were given a daily dose of
beetroot juice, and in the other group, the remaining athletes were given a daily dose of a placebo. At the
end of six weeks of exercise training, the researcher compared the performances of the two groups. Based
on the design of the investigation, which of the following is the largest population to which the results can
be generalized?
The 25 student athletes assigned to the beetroot juice group
I
B The 50 student athletes in the sample
All student athletes at the college
D All students at the college
All people who exercise