One of the assumptions of the Mann-Whitney U test is that there are no ties.If there are ties in the data set:
A) do not use the Mann-Whitney U test.
B) use the Mann-Whitney U test if there are just a few ties as it is robust to violations of this assumption.
C) use the Mann-Whitney U test anyway, even if you have lots of ties in your data since it is robust to this assumption.
D) use the Kruskal-Wallis H test instead.

Question

Quizplus · Accepted Answer

The Mann-Whitney U test can still be used if there are a few ties in the data, as it is considered robust to minor violations of this assumption. Adjustments in the calculation method can account for ties, allowing for the test's application in such scenarios.

One of the Assumptions of the Mann-Whitney U Test Is