We can use the Friedman test to determine whether two populations differ. The conclusion will be the same as that produced by the sign test.

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The Friedman test is a non-parametric test used to compare more than two paired populations. Its conclusion is similar to the sign test, which is a non-parametric test used to compare two paired populations. Both tests do not assume normal distribution and are appropriate when the data violate the assumptions of parametric tests. Therefore, we can use the Friedman test to determine whether two populations differ, and the conclusion will be the same as that produced by the sign test.

We Can Use the Friedman Test to Determine Whether Two