A principal orders t-shirts and wants to check some of them to make sure they were printed properly. She randomly selects of the boxes of shirts and checks every shirt in those boxes.What type of sampling is this?Choose 1 answer:Choose 1 answer:(Choice A) Simple random samplingASimple random sampling(Choice B) Stratified random samplingBStratified random sampling(Choice C) Cluster random samplingCCluster random sampling(Choice D) Systematic random samplingDSystematic random sampling
Question
A principal orders t-shirts and wants to check some of them to make sure they were printed properly. She randomly selects of the boxes of shirts and checks every shirt in those boxes.What type of sampling is this?Choose 1 answer:Choose 1 answer:(Choice A) Simple random samplingASimple random sampling(Choice B) Stratified random samplingBStratified random sampling(Choice C) Cluster random samplingCCluster random sampling(Choice D) Systematic random samplingDSystematic random sampling
Solution
The type of sampling described in this scenario is Cluster random sampling (Choice C). In cluster sampling, the entire population is divided into groups, or clusters, and a random sample of these clusters are selected. All observations from the selected clusters are included in the sample. In this case, the principal is treating each box of shirts as a cluster and checking all shirts (observations) within the randomly selected boxes (clusters).
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