What can you conclude?

What can you conclude from the p-values in the output? (wm is still loaded in your workspace, so you can redo the post-hoc test if necessary.)

Recall that the hypotheses are tested at a 5% significance level.

50 XP

All pairwise comparisons are significant.
All pairwise comparisons are significant, except for the comparison between 19 and 17 and the comparison between 12 and 8.
All pairwise comparisons are not significant, except for the comparison between 19 and 17 and the comparison between 12 and 8.
All pairwise comparisons are not significant.