My advice to all future students is start this project earlier. Don't ever procrastinate. There are a lot of work, so you have to use your time wisely because there will be works from other classes. Having a partner makes this project so much easier. With your partner, you should brainstorm and get the most creative, the best idea. Getting the random sample is very important. I struggled with this, but you will be able to do your best to make your sample random.
I would suggest a research project on the relationship between students and their caffeine consumption. Possibly, which major spend the most money? Good luck with this project!