Estimation question

Suppose Nike wants to start a subscription shoe service. How would you size the market opportunity and validate it?

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Combining market sizing with go to market validation, estimating an opportunity and proposing how to test it before committing.

Define the target user for a shoe subscription, likely parents of growing children or fitness enthusiasts wanting frequent new pairs.
Estimate the addressable population, for example the number of US households with children in a fast growing shoe size range.
Apply an adoption rate and average subscription price to estimate potential annual revenue.
Propose a validation plan, such as a limited regional pilot or waitlist campaign to test real demand before a full launch.
State what success in the pilot would look like, such as a target conversion rate from waitlist to paid subscription.

Builds the market size from a clear, specific segment, families with growing kids, rather than everyone who wears shoes.
States assumptions explicitly, like a 5 to 10 percent adoption rate and an illustrative monthly price, and shows the resulting revenue math.
Proposes a concrete, low cost validation step, like a regional pilot, before recommending full investment.

Sizing the market for all shoe buyers instead of the specific subscription relevant segment.
Skipping the validation plan despite the question explicitly asking how to validate it.

Chapters of the AI PM course that teach what this question tests.