A manufacturer wants to test a sample of the products his company produces. Products are produced in sets of 100, and each set of 100 is called a lot. The company produces hundreds of lots each day. The manufacturer decides to randomly select five lots from each day's production run and test every product in these five lots. Which of the following best describes this type of sampling?

A manufacturer wants to test a sample of the products his company produces. Products are produced in sets of 100, and each set of 100 is called a lot. The company produces hundreds of lots each day. The manufacturer decides to randomly select five lots from each day's production run and test every product in these five lots. Which of the following best describes this type of sampling?



A) Convenience 

B) Simple random

C) Stratified random

D) Cluster

E) Systematic



Answer: Cluster


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