Feature Analysis and Launch Evaluation Questions
Designing and applying evaluation frameworks to measure feature success and inform launch decisions. Topics include defining success metrics, experimentation design and basic A over B testing concepts, setting evaluation timeframes, identifying confounding factors, cohort and funnel analysis, instrumentation requirements, and how to iterate based on results. Candidates should be able to propose metrics, describe trade offs in evaluation design, and explain how launch evaluation influences product prioritization.
MediumSystem Design
0 practiced
Design an A/B experiment to evaluate a checkout redesign on a product with 2 million monthly active users. You expect a 2% relative uplift in conversion. Describe assumed baseline conversion, how to compute sample size or minimum detectable effect, timeframe for the test, ramping plan, and any segmentation you would pre-specify. State assumptions clearly.
MediumTechnical
0 practiced
Design a cohort retention analysis using survival analysis concepts. Describe what a Kaplan-Meier curve shows, how to handle censoring, and how you would test difference in survival between control and treatment cohorts.
HardTechnical
0 practiced
A senior stakeholder asks to ship a feature despite inconclusive experiment results. Describe how you would negotiate with the stakeholder, propose risk-mitigation strategies (such as progressive rollout, long-term holdouts, or secondary experiments), and how you would document decisions and accountability.
EasyTechnical
0 practiced
You are asked to analyze a signup funnel: visit -> signup-start -> submit -> activate. Describe the steps you would take to run a funnel analysis, key metrics to compute (e.g., step conversion rates), how you would prioritize which step to improve, and one experiment you might run for the top priority.
EasyTechnical
0 practiced
List a minimal pre-launch instrumentation checklist you would use to validate that an A/B experiment is safely measurable in production. Include specific tests, sanity checks, and smoke tests you would run in staging and in the first hours after launch.
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