A sample of 300 subscribers to a particular magazine is selected from a population frame of 9,000 subscribers. If, upon examining the data, it is determined that no subscriber had been selected in the sample more than once
A) the sample had to have been selected without replacement.
B) the sample could not have been random.
C) the sample had to have been selected with replacement.
D) the sample may have been selected without replacement or with replacement.

Question

Quizplus · Accepted Answer

The fact that no subscriber was selected more than once does not necessarily mean the sample was selected without replacement; it could also mean that, by chance, no duplicates occurred in a sample selected with replacement.

A Sample of 300 Subscribers to a Particular Magazine Is