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Mathematics, 05.05.2020 17:03 lizzytyler4725

A researcher believes that headaches can be relieved by drinking water flavored by
mint leaves. So the researcher asks a group at the hospital to participate in a study
in which the researcher gives half of the participants in the study just plain water and
half the water flavored by mint leaves to compare the two groups.
A. Experimental Study
B. Observational Study
C. Simulation Study

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A researcher believes that headaches can be relieved by drinking water flavored by
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