Dear preplounge community,
When doing case interviews, I am not sure when I am supposed to ask as many questions as possible, or when I'm supposed to proactively make assumptions.
Asking many questions can show I am leaving no stone unturned, but can also make the interviewer think I want him to solve the case for me.
Making assumptions can show confidence and proactivity, but you can easily miss some informations you should have asked, either going into the wrong direction or using wrong data.
Let's take the Asian lubricants producer case from Bain:
You need the population of Russia, Germany, and Turkey to compare the market size of each country. Should I ask first for the data, or should I proactively make assumptions, knowing that if I'm too far away the interviewer will correct me?
As an heuristic I try to ask many questions in the beginning, and make assumptions as the case moves forward. Am I on the right direction ?
If I ask a question but the interviewer responds something such as "make an assumption" or "what do you think?", does it mean I should have make an assumption in the first place and not asking the question?
If the question is too precise and should be answered more broadly at the humility vs confidence level don't hesitate to do so.