I had an interview today and I was asked to estimate market size for delivery service in dollar terms in thailand.
I started with a supply side approach, checked with the interviewer if my approach was sound. I was struggling to drive the case so she had to steer me back towards demand side approach. Eventually I could come up with my own structure from demand side and successfully sense checked my numbers to find that it was an overestimation.
Is this bad? will I be failed?