Exhibit 8-1
In order to estimate the average time spent on the computer terminals per student at a local university, data were collected for a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours.
-Refer to Exhibit 8-1. The standard error of the mean is
A)7.50
B)0.39
C)2.00
D)0.20

Question

Quizplus · Accepted Answer

The standard error of the mean is calculated using the formula: standard deviation divided by the square root of the sample size. Here, it is 1.8 / √81 = 0.20.

Exhibit 8-1 in Order to Estimate the Average Time Spent on the on the Computer