For Questions use the following narrative
Narrative: Apartment complex
Suppose you want to survey the opinions of the residents of an apartment complex.The complex contains 100 buildings, each with 8 units per building, for a total of 800 units.You decide to sample 160 of the units.
-{Apartment complex narrative} Suppose you randomly sample 20 buildings, and then select every unit in those 20 buildings to be in your sample, for a total of 160 units.What sampling method did you use?
A)A systematic sample.
B)A stratified sample.
C)A cluster sample.
D)A simple random sample

Question

Quizplus · Accepted Answer

The sampling method used in this scenario is a cluster sample. This is because the buildings are selected as clusters and all units within those buildings are included in the sample. This is different from a stratified sample, where the population is divided into subgroups (strata) and a random sample is taken from each stratum. It is also different from a systematic sample, which involves selecting every nth unit from a list or sequence, and a simple random sample, which involves randomly selecting units from the entire population without any grouping or clustering.

For Questions Use the Following Narrative