Hi, I read from several books that the case interview should always be hypothesis driven, i.e. state the hypothesis early in the interview. However, I feel that for some cases, hypothesis is not really needed. The examples that I encountered so far include: 1. market sizing; 2. what is the distribution channel for a certain product; 3. optimization of few options. For the 2nd situation, I was not able to come up with a hypothesis before almost doing all analysis, i.e. identified what are the potential distrubution channels. for the 3rd situation, I can hypothesis that "the client need to optimize the options" and come up with few criteria for assessing the options, i.e. the structure. But it is very general hypothesis, which does not help at all to identify the structure. I feel that in all three situations mentioned above, hypothesis doesn't seem necessary. Can anyone please help me to understand if hypothesis is really needed in every case interview, including the situations that I mentioned above? If not, what are the potential type of cases where hypothesis is not needed? Thanks.