Trainers Need to Estimate the Level of Fat in Athletes

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 followup test. The main
Purpose of the larger sample is to…

A) decrease the standard deviation of the sampling model.
B) reduce response bias.
C) reduce non-response bias.
D) reduce confounding due to other variables.
E) decrease the variability in the population.