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An administrator claims that for a particular school, commuters drive on average more than 11.5 miles to get to campus. You decide to test this claim with a random sample of 95 students having a mean of 11.9 miles and standard deviation of 2.1 miles. Test the administrator's claim using a level of significance of a = 0.01. What type of test will be used in this problem?

Sagot :

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