To Estimate, with 95% Confidence, the Average Number of Kilometres

question 35

Multiple Choice

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. In this case, which of the following is the point estimate for the true population mean?

• A) 6.63
• B) 5.20
• C) 3.22
• D) 2.15

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