I want to explain the relation between getting a reply and posting in a e-commerce. I want to know how much a reply increases postings.
I know I could do a regression of postings=f(replies) but the issue is that I have most of the postings getting only one reply. The distribution is skewed.
So, I could measure the means of postings by group (and the groups depends on how many replies you got), but I will have a lot of people in the first "xi" and almost nobody in the last. I think this might bring me issues because the variance in each point will be different.
How does this impact on my coefficient regression? Am I going to have issues related to heterocedasticity? How would be the most accurate way to measure this relation?