Trainers need to estimate the level of fat in athletes to ensure good health. Initial tests were based on a small sample but now the trainers double the sample size for a follow-up test. The main purpose of the larger sample is to…
A) reduce confounding due to other variables.
B) reduce non-response bias.
C) reduce response bias.
D) decrease the standard deviation of the sampling model.
E) decrease the variability in the population.

Question

Quizplus · Accepted Answer

Increasing the sample size decreases the standard deviation of the sampling model, which allows for more precise estimates of the population parameter. This is important in accurately estimating the level of fat in athletes for good health.

Trainers Need to Estimate the Level of Fat in Athletes