Evaluate Facebook's Restaurant Recommendations Feature Effectiveness
Company: Meta
Role: Data Scientist
Category: Analytics & Experimentation
Difficulty: medium
Interview Round: Onsite
##### Scenario
Facebook considering launching restaurant recommendations in the News Feed.
##### Question
Design an experiment to evaluate the feature: define treatment, control, success metrics, guardrail metrics, sample-size approach, and rollout criteria.
##### Hints
Focus on incremental engagement, CTR, downstream orders; watch for feed scroll depth and churn.
Quick Answer: This question evaluates a candidate's competency in online experimental design and product analytics, including defining treatment and control groups, selecting primary and guardrail metrics, estimating sample size and duration, and planning rollout and decision criteria.