In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for a sample of 64 business students over a one-week period. Assume the population standard deviation is 1.6 hours. The standard error of the mean is
A) 1.6.
B) .025.
C) 2.00.
D) .20.

Question

Quizplus · Accepted Answer

The standard error of the mean is calculated as the population standard deviation divided by the square root of the sample size. Here, it is 1.6 / sqrt(64) = 1.6 / 8 = 0.2.

In Order to Estimate the Average Time Spent Per Student