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Several AP Statistics students wondered whether caffeine could improve test scores. They randomly assigned 30 student volunteers to either drink regular coffee or decaffeinated coffee
Several AP Statistics students wondered whether caffeine could improve test scores. They randomly assigned 30 student volunteers to either drink regular coffee or decaffeinated coffee the morning of the students' next test. At the end of the experiment, they recorded test scores for each student volunteer. Identify the treatments and the experimental units in this experiment.
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