You and the statistician, Dr. Cline, are working to determine sample size. You are discussing which sampling method you will use. There are 1,200 possible records and you need 100 records for the study. Dr. Cline suggests you select every twelfth record until sample size is achieved. This makes sense to you. It takes less time and is less subject to error than other sampling methods. The two of you agree to use

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The sampling method suggested by Dr. Cline is systematic sampling, where every twelfth record is selected. This method is less time-consuming and less subject to errors than other sampling methods, and is commonly used when the population size is known and there is a clear sampling frame. Random sampling (choice A) involves selecting records at random, which can be time-consuming and may not provide a representative sample. Simple sampling (choice B) is similar to random sampling, where records are selected at random, and may also be time-consuming, while stratified random sampling (choice D) involves dividing the population into strata and selecting records from each stratum, which may not be necessary or feasible for this study. Therefore, the best choice in this situation is systematic sampling.

You and the Statistician, Dr