Which of the Following Is TRUE

question 74

Multiple Choice

Which of the following is TRUE?

• A)In cluster sampling,the parent population is broken into mutually exclusive and exhaustive subgroups and a simple random sample is selected from each subgroup.
• B)Cluster samples are most statistically efficient when the clusters are internally homogeneous.
• C)In order to yield high statistical efficiency,each cluster in a cluster sample should include as many diverse population values as possible.
• D)One of the main advantages of cluster sampling over simple random sampling is its greater statistical efficiency for the same size sample.
• E)Cluster samples are more costly than stratified samples for the same sample size.

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