The university registrar claims that fewer than 20 percent of the students who enroll at Ivy University graduate in four years.To test this claim,a random sample of 100 students was selected,and 18 were found to have graduated in four years.Calculate the appropriate test statistic to test the hypotheses.

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The Answer of The university registrar claims that fewer than 20 percent of the students who enroll at Ivy University graduate in four years.To test this claim,a random sample of 100 students was selected,and 18 were found to have graduated in four years.Calculate the appropriate test statistic to test the hypotheses.

The University Registrar Claims That Fewer Than 20 Percent of the Students