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In 2002 the Supreme Court ruled that schools could require random drug tests of students participating in competitive after-school activities such as...
In 2002 the Supreme Court ruled that schools could require random drug tests of students participating in competitive after-school activities such as athletics. Does drug testing reduce use of illegal drugs? A study compared two similar high schools in Oregon. Wahtonka High School tested athletes at random and Warrenton High School did not. In a confidential survey, 5 of 104 athletes at Wahtonka and 20 of 105 athletes at Warrenton said they were using drugs. Regard these athletes as SRSs from the populations of athletes at similar schools with and without drug testing. (A)Give the plus four 99% confidence interval for the difference between the proportion of athletes using drugs at schools with and without testing.
