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The vice-chancellor of a university is concerned that illicit drug use on campus is higher than the 5% acceptable level. A random sampling of 130

The vice-chancellor of a university is concerned that illicit drug use on campus is higher than the 5% acceptable level. A random sampling of 130 students from a population of 2000 revealed that 5 of them had used illicit drugs during the last 12 months.

True or false: the president can be 90% confident that no more than 5% of the students at the university had used illicit drugs during the last 12 months.

a True

b False

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