Requirements Assume that we want to use the data from Exercise 1 with the Kruskal-Wallis test. Are the requirements satisfied? Explain.

Three samples are given showing the attribute ratings of people in different age groups.

The Kruskal Wallis test is a non-parametric test that is used to test the difference in the medians of the populations from which at least three samples have been taken.

The tworequirements of the Kruskal-Wallis test are as follows:

• There should be at least three independent samples.
• Each sample should have at least five observations.

As the three samples correspond to different females from three different age groups, the three samples do not depend on each other.

Moreover, all three samples have 10 observations,that is, each sample has at least five observations.

Thus, both requirements of the Kruskal-Wallis test are fulfilled by the given samples on ratings.