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April 28, 2015

Homework Help: statistics

Posted by Anonymous on Friday, March 2, 2012 at 4:58pm.

A random sample of 80 youths and a second random sample of 120 adults showed that 18 of the youths and 10 of the adults had been ticketed for careless driving. Use a 1% level of significance to test the claim that youth have a higher proportion of careless drivers than adults do. state the null and alternative hypothesis

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