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To estimate with 95% confidence the average number of kilometres that students living off-campus commute to classes every day, a random sample of 20

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To estimate with 95% confidence the average number of kilometres that students living off-campus commute to classes every day, a random sample of 20 students was taken and produced a mean equal to 5.2 km and a standard deviation of 3.05 km. Under these circumstances, what is the appropriate critical value? 2.093 17291 1.96 02.086

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