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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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studymite studymite
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4 years ago
Determine whether the study depicts an observational study or an experiment.

A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 30 people to a treatment group and 30 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients' symptoms are evaluated.

▸ observational study

▸ experiment
Textbook 
Statistics: Informed Decisions Using Data

Statistics: Informed Decisions Using Data


Edition: 5th
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gturgtur
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