The professor of a business statistics class wanted to find out the average amount of time per week her students spent studying for the class. She divided the fifty students on her roster into ten groups starting from the first student on the roster. The first student was randomly selected from the first group. Then every tenth student was selected from the remaining students. This is an example of a cluster sample.

Question

Quizplus · Accepted Answer

This is an example of a systematic sample, not a cluster sample. In a systematic sample, every nth element is selected from a list, whereas a cluster sample involves dividing the population into clusters and then randomly selecting entire clusters.

The Professor of a Business Statistics Class Wanted to Find