Question: Determine whether the description corresponds to an observational study or an experiment. Sixtypatientswithhearinglossaredividedintotwogroups.Onegroupreceivesan experimentaltreatment,theotheraplacebo. Afterthreemonths,hearingacuity ismeasured. Does the description correspond to an observational study or

Determine whether the description corresponds to an observational study or an experiment.

Sixtypatientswithhearinglossaredividedintotwogroups.Onegroupreceivesan experimentaltreatment,theotheraplacebo. Afterthreemonths,hearingacuity ismeasured.

Does the description correspond to an observational study or anexperiment?

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