Which sampling plan takes advantage of the fact that, all else equal, smaller samples are required to estimate a population parameter if there is little variation on the characteristic in the group being sampled?
A) Area
B) Stratified
C) Snowball
D) Simple random
E) Quota

Question

Quizplus · Accepted Answer

Stratified sampling involves dividing the population into subgroups (strata) that are similar in some way, and then taking a sample from each stratum. This method reduces variability within each subgroup, allowing for smaller sample sizes to achieve the same level of precision in estimating the population parameter.

Which Sampling Plan Takes Advantage of the Fact That, All