A clothing manufacturer checks the level of satisfaction people have with the merchandise by measuring the number of returns versus the number sold. This is an observational study.
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Question

A clothing manufacturer checks the level of satisfaction people have with the merchandise by measuring the number of returns versus the number sold. This is an observational study.
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False

purplemexican · Answer

In epidemiology and statistics, an observational study draws inferences about the possible effect of a treatment on subjects, where the assignment of subjects into a treated group versus a control group is outside the control of the investigator.

anonymous · Answer

okay. So it is an observational study because the control group is outside of the control of the investigator right? @purplemexican