The professor of a business statistics class wanted to find out the mean amount of time per week her students spent studying for the class.She divided the students into the left,right and center groups according to the location they sat in the class that day.One of these 3 groups was randomly selected and everyone in the group was asked the mean amount of time per week he/she spent studying for the class.This is an example of a cluster sample.

Question

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The professor divided the students into clusters based on their seating location in the class, and then randomly selected one of those clusters to obtain her sample. This is a cluster sampling method.

The Professor of a Business Statistics Class Wanted to Find