Applied online and had a phone interview which went well and then I was called in for an in-person interview. I talked about my previous internships and leadership skills/important classes I had taken in college. I basically explained my resume in detail during the phone interview. When I went for the in-person interview, it was very relaxed and casual. I had asked questions about the company/work life/etc. As long as you research about the company, know how to analyze data, and work with Excel, you should be fine. As with any interview, be friendly and polite.