When selecting a stratified sample, the sample size is:
A)determined for the unstratified population and then apportioned to each stratum.
B)determined for each stratum and selected from that stratum.
C)determined for each stratum and selected randomly from the entire unstratified population.
D)always larger than if unstratified sampling had been used.

Question

Quizplus · Accepted Answer

When selecting a stratified sample, the sample size is determined for each stratum and selected from that stratum. This ensures that each stratum is represented according to its relative size in the population, and the sample is more representative of the overall population. Therefore, option B is the correct choice.

When Selecting a Stratified Sample, the Sample Size Is