In a 1993 survey of 560 college students, 171 said that they used illegal drugs that year. In a 2012 survey of 720 college students, 263 said that the

In a 1993 survey of 560 college students, 171 said that they used illegal drugs that year. In a 2012 survey of 720 college students, 263 said that they used illegal drugs that year. Use a .05 significance level to test that the proportion of college students using illegal drugs in 1993 was less than the proportion of students in 2012.

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