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Author Question: Determine whether the study depicts an observational study or an experiment.A researcher obtained a ... (Read 120 times)

penza

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Determine whether the study depicts an observational study or an experiment.

A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers. After interviewing all 200 participants in the study, the researcher compared the rate of depression among the smokers with the rate of depression among nonsmokers.
◦ observational study
◦ experiment


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Marked as best answer by penza on Jan 16, 2020

hramirez205

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penza

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Reply 2 on: Jan 16, 2020
YES! Correct, THANKS for helping me on my review


Dnite

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Reply 3 on: Yesterday
Gracias!

 

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