Compute A/B test sample size and Bayes posterior
Company: Roblox
Role: Data Scientist
Category: Statistics & Math
Difficulty: easy
Interview Round: Online Assessment
Overview: This question evaluates understanding of statistical power and sample size calculation for a two-sided A/B z-test as well as basic Bayesian posterior computation, with emphasis on estimating outcome variance and updating probabilities in the Statistics & Math domain.
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