First of all, I know many people that have achieved acceptance with below a 3.7, if you look at the stats for almost every Ohio school, their average GPA is below a 3.7. Therefore, it would be my assumption that if you have around a 3.5, you should not worry about your GPA. On the other hand, I do not know anyone with below a 27, that has gotten accepted, but I know a few with 24's, 25's, and 26's that have gotten interviews, but have been rejected post-interview. They received interviews at Wright State and I know there are quite a few people at WSU with below a 27 by just observing the stats and heresay from some of my friends. Just realize, that the number of people I know is limited and that there will always be people who are outliers and get accepted with low numbers, but that is not the norm. Hope this helps.