Ateacher wants to know if alcohol improves test performance. he separates 24 students into three groups by random assignment. group 1 is sent to a study group for 3 hours before the test. group 2 is sent to the gym for three hours before the test, and group 3 is sent to a bar for three hours before the test. after the three hours, the students are tested. what would be the best statistical test to show if alcohol had any affect between the three groups?
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