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Case Fundamentals
Consulting & Strategy

Market Sizing I

CaseEasy~30 minDesigned by experts

About this interview

A case interview on Case Fundamentals, pitched at the easy level. A voice AI interviewer leads the conversation, adapts its questions to your answers, keeps you on topic, and afterward gives you honest, specific feedback on where you were strong and where to improve. Expect roughly 30 minutes.

What you'll be assessed on

Structure an ambiguous sizing question into a clear top-down or bottom-up decomposition
Choose and justify sensible benchmark assumptions aloud
Execute segment arithmetic verbally with running sanity checks
Synthesize a final estimate answer-first with an error-bounds caveat

What to expect

A classic market-sizing drill: take an ambiguous "how big is this market" question and build a clean, defensible estimate from scratch.

Practice choosing top-down vs. bottom-up, defending your assumptions under "why that number?" follow-ups, and landing on one caveated final figure.

No exhibits here -- just you, a case partner, and mental math under light pressure.

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