In order to estimate the average time spent on the computer terminals per student, data were collected for a sample of 49 business students over a one week period. Assume the population standard deviation is 1.4 hours. The standard error of the mean is
A) 0.20
B) 0.30
C) 5
D) 7

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 1.4 / √49 = 1.4 / 7 = 0.20.

In Order to Estimate the Average Time Spent on the Computer