We can use the Friedman test to determine whether a difference exists between two populations. However, if we want to determine whether one population location is larger than another, we must use the sign test.

Question

Quizplus · Accepted Answer

The Friedman test is used for comparing more than two related groups, while the sign test is used to compare two related samples to determine if one population tends to have larger values than the other.

We Can Use the Friedman Test to Determine Whether a Difference