In a Kruskal–Wallis test, the null hypothesis is always that:
▸
\(\style{font-family:Times New Roman;}{{\overset˜\mu}_1-{\overset˜\mu}_2=\Delta_{\text{o}}}\).
▸
\(\style{font-family:Times New Roman;}{\overset˜\mu={\overset˜\mu}_0}\).
▸
the sequence of observations is random.
▸
theksamples are from identical populations.