A large supermarket chain in Nigeria is conducting research into consumer purchasing behaviour. It has 12 regions with 30 stores on average in each region. In order to save travel time, they decide to conduct the research in 10 randomly selected stores in each of 4 regions. What type of sampling approach is this an example of?
A) Multi-stage sampling
B) Stratified sampling
C) Cluster sampling
D) Simple random sampling

Question

Quizplus · Accepted Answer

This is an example of multi-stage sampling because the supermarket chain is using multiple stages to select its sample: first selecting regions, then selecting stores within those regions.

A Large Supermarket Chain in Nigeria Is Conducting Research into Consumer