For example, when I compared a student population split into four year groups and compiled a bar graph, I could see that the 2nd year students were vastly overrepresented in their responses to that particular question.
Seperately, I performed a Kruskal Wallis test to see if there were any statistically significant differences between the year levels, which returned a p-value of <0.05. A quick scan of the internet has told me that I need to do a post-hoc test to figure out where the significant difference lies. But it would seem that I already know the answer to that question? Could I not just say "The larger number of 2nd year responses over all other year groups was statistically significant"?