If you wish to estimate with 95% confidence the average number of miles that students living off-campus commute to classes every day, a random sample of 20 students produced a mean equal to 5.2 miles and a standard deviation of 3.05 miles. Then the point estimate for the true population mean is:
A) 3.22
B) 6.63
C) 5.20
D) 2.15
E) 1.96

Question

Quizplus · Accepted Answer

The point estimate for the true population mean is equal to the sample mean, which is 5.2 miles.

If You Wish to Estimate with 95% Confidence the Average