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Interview question

seniorlevel
8 minsuggested time
2Data scientist, Data analyst

Revenue management asks for "the 95% interval for passengers on flight ZX104 next Friday". A colleague returns the 95% confidence interval of the mean passenger count over the last 52 Fridays. What is wrong, and what would you deliver?

Tests: Distinguishing a confidence interval for a parameter from a prediction interval for a new observation, and choosing the interval that matches the decision.

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