# Recent content by michl8705

1. ### Two tailed t-test for data sets that do not follow normal distribution?

Hi there, I'm doing some work comparing two sets of people: those I invited to an event, and those who actually showed up. I am comparing the amount of money they donated to our charity in the past. I have the amounts bucketed into about five categories (i.e., $100-$199, $200-$299, etc.)...