A college teacher wishes to estimate the mean number of hours worked per week atnon-college related jobs byfull-time students at the college. He desires a margin of error of 0.5 hours. Past studies suggest that a population standard deviation of 13.4 hours is reasonable. Estimate the minimum sample size needed to estimate the population mean with the stated accuracy.

A.

2,873

B.

143,648

C.

54

D.