Johnson is hired by a company to see if a new product,Topocal,will cause hair to grow on the heads of bald men.He recruits one thousand bald men,and randomly divides them into two groups:Five hundred (group A)rub Topocal on their scalps each day;the other five hundred (group B)rub a standard skin lotion on their scalps each day.After two months,Johnson checks to see what the results have been.He finds that there has been hair growth in 7 percent of group A and in 2 percent of group B.What is the sample?
A)bald men in general
B)the bald men who participated in the study
C)the men in group A
D)the men in group B

Question

Quizplus · Accepted Answer

The sample refers to the group of individuals who participated in the study, which in this case is the one thousand bald men recruited by Johnson. Therefore, the answer is B. The other options are not correct as they refer to a larger population (option A) or only to one of the groups in the study (options C and D).

Johnson Is Hired by a Company to See If a New