At a large university, a simple random sample of five female professors is selected, and a simple random sample of 10 male professors is selected. The two samples are combined to give an overall sample of 15 professors. The overall sample is:
A)a simple random sample.
B)biased due to imbalance.
C)a stratified sample.
D)All of the answer options are correct.

Question

Quizplus · Accepted Answer

The overall sample is a stratified sample because it involves selecting samples from distinct subgroups (female and male professors) of the population and then combining these samples.

At a Large University, a Simple Random Sample of Five