It was a case interview. Should split a case into small parts and apply econometric tools to each part. They are friendly, but questions are very broad, so coming up with an answer right aways is not easy.
Great interview process with clear communication throughout. The entire process took about a month from start to finish, providing a positive experience and transparent updates at every step. Overall good.
For the interview process there was an initial screening, and then an interview with a manager and a business case. I had never done a business case before, so that was something that was new to me but they did share materials/resources to help prepare.
Interview questions [1]
Question 1
You need to be prepared to do a business case style interview.