Compute power and interpret guardrails
Company: DoorDash
Role: Data Scientist
Category: Statistics & Math
Difficulty: hard
Interview Round: Onsite
Overview: This question evaluates competency in experimental design and applied statistics for cluster-randomized A/B tests, covering cluster-robust inference, mean and proportion comparisons, power/MDE calculations with ICC and design effects, multiple-testing control, and sensitivity adjustments such as difference-in-differences and CUPED.
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