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Take a Test-Jackson Tucker-Microsoft Edge B https://www.mathd Test.aspx?testid- 1903799388centerwin yes MA253.01 Statistics Fall 2018 Jackson Tuck Quiz: Quiz 1: Chapters 1 and 2 This Question: 1 pt 16 of 30 (15 complete)Y Identify which type of sampling is used random, systematic, convenience, stratified, or cluster. To determine customer opinion of their pricing. Home Depot randomly selects 150 check out lines during a certain week and surveys all custorners in the check out ines. Which type of sampling is used? O A. Convenience O B. Systematic O C. Random O D. Stratified E. Cluster Click to select your answer To get started, run Browser C k to make sure Type here to search DOLL

Explanation / Answer

Answer is Cluster sampling.

Because Cluster sampling does not require a list of all of the units in the population like systematic sampling does.Rather, It takes units and groups them together to form clusters of several units. In contrast to stratified sampling, clusters should be as heterogeneous as possible within clusters and as homogeneous as possible between clusters.

The main difference between cluster sampling and stratified sampling is that in cluster sampling, the cluster is treated as sampling unit and analysis is done on a population of clusters.In one-step cluster sampling, all elements are selected in the choosen clusters.

Hence in this problem also cluster sampling technique is applied.List of all customers of a week form a cluster.

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