The estimated standard error of difference may be obtained on the basis of the information contained in
A) a single sample
B) a pair of random samples
C) the sampling error
D) a single z score

Question

Quizplus · Accepted Answer

The estimated standard error of difference is used to determine the significance of differences between two groups, so it requires information from two samples. Therefore, choice B (a pair of random samples) is the best option.

The Estimated Standard Error of Difference May Be Obtained on the Basis