Mathematics, 18.02.2022 14:00 heathercollard57
Determine whether the study described is a randomized experiment or an observational study. A math department chair wants to determine the effectiveness of online homework systems. She chooses four college algebra classes and assigns a different online homework system to three of the classes. One class does not use any online homework system. She administers a common pretest and final exam to measure the effectiveness.
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Determine whether the study described is a randomized experiment or an observational study.
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