If a researcher for Procter & Gamble selects five states randomly,and then selects 10 supermarket chains within each of these states to call for a phone survey for a test market of a new shampoo,what type of sampling procedure is being used?
A)systematic sample
B)simple random sample
C)nonprobability sample
D)cluster sample

Question

Quizplus · Accepted Answer

The sampling procedure being used is a cluster sample, as the researcher is selecting clusters (states) and then sampling within each cluster (supermarket chains).

If a Researcher for Procter & Gamble Selects Five States