Question

Robert D. Kersey published an article titled "Anabolic-Androgenic Steroid Use among California Community College Student Athletes." If he used a 3% difference in steroid use between genders to calculate a confidence interval, what is he estimating?

A) The sample contained 1,185 community college athletes
B) The gender difference in steroid use in the population
C) The number of males and females in the sample
D) The percentage of female athletes who reported steroid use

Answer 1

Robert D. Kersey used a 3% difference to estimate the gender difference in steroid use in the population, not the sample size or percentages within the sample alone.

Step-by-step explanation:

If Robert D. Kersey published an article titled "Anabolic-Androgenic Steroid Use among California Community College Student Athletes" and used a 3% difference in steroid use between genders to calculate a confidence interval, he is estimating B) the gender difference in steroid use in the population. A confidence interval would allow him to say that based on the sample data, he can be a certain percentage confident that the actual percentage difference in steroid use between male and female community college athletes falls within a range around this 3% observed difference. It's important to note that anabolic steroid misuse is less common in women and is a point of concern in terms of health and fairness in sports.