Help with Case Study Interview

(Please move the topic if it's in the wrong topic forum)

This upcoming Saturday, I have an interview for an on-campus student-run consulting group that does specialized consulting for businesses across the city where I'm from. I got an email saying that the interview will be a case study (probably randomized since 30 other students are interviewing for the group) and I need to look over it when I get to the interview 15-minutes before hand.

Even though, I'm interested in going into IB, I feel like this "job" will kind of help boost my resume and give me more understanding about financial analysis, marketing analysis, and businesses in general.

I was wondering if there's any tip any of you would have for someone who hasn't done a case study before, because I'm feeling I might blank out on the case study given to me. Thanks!