Question

Customers were divided into groups by the state they live in, which is 50 groups. A random sample of 8 groups (states) was chosen, and then only those chosen groups were sampled. What type of sampling is this?

A. Systematic
B. Cluster
C. Stratified
D. Simple random

Answer 1

The manager of the department store used a cluster sampling design by randomly selecting four departments and interviewing all employees in those departments.

Step-by-step explanation:

The type of sampling design used is A. Cluster. In this scenario, the manager of the department store randomly selects four departments and interviews all the employees in those four departments. This is an example of cluster sampling because the population is divided into clusters (departments) and each cluster is sampled in its entirety.