I conducted hypothesis test using HypohesisTest package, however, it seems that can’t do post-hoc test. Is there a package could do it?
What post-hoc tests are you talking about? Do you mean “resolving interactions in ANOVA?” Maybe “pairwise t-tests following omnibus ANOVA”?
I guess the OP would like to perform tests such as Tukey-Kramer, which are better than doing lots of t-tests are they take into account the increased risk of false positives due to doing many comparisons between all pairs of groups. I don’t know whether a package supports it currently in Julia.