A case interview is a common recruitment tool nowadays.
Quick tips:
Stay calm – listen clearly to what the interviewer says. Case contents are usually read out to candidates by the interviewer
Ask questions – if you have any doubts, please ask clarifying questions to ensure you understand the issue
Listen carefully – jot down the key points, summarize specific findings and state your recommendation and expected results
Respond swiftly – the purpose of a case interview is to assess a candidate's analytical, numerical, problem solving, conclusion and communication skills. Make sure you are able to do quick, accurate calculations
Propose solutions reasonably – when coming up with solutions or recommendation, you should be reasonable but creative. Try to make educated guesses to establish values in the face of incomplete data to support your proposal
Present confidently – present your ideas clearly and structurally to your interviewer