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Data Driven Recommendations and Impact Questions

Covers the end to end practice of using quantitative and qualitative evidence to identify opportunities, form actionable recommendations, and measure business impact. Topics include problem framing, identifying and instrumenting relevant metrics and key performance indicators, measurement design and diagnostics, experiment design such as A B tests and pilots, and basic causal inference considerations including distinguishing correlation from causation and handling limited or noisy data. Candidates should be able to translate analysis into clear recommendations by quantifying expected impacts and costs, stating key assumptions, presenting trade offs between alternatives, defining success criteria and timelines, and proposing decision rules and go no go criteria. This also covers risk identification and mitigation plans, prioritization frameworks that weigh impact effort and strategic alignment, building dashboards and visualizations to surface signals across HR sales operations and product, communicating concise executive level recommendations with data backed rationale, and designing follow up monitoring to measure adoption and downstream outcomes and iterate on the solution.

MediumTechnical
33 practiced
Executive-summary case study: Given this short result (numbers hypothetical): 'A/B test on checkout flow → Treatment lift in conversion +3.2% (p=0.04), average order value -1.0% (p=0.20), 14-day retention +0.5% (p=0.30)'. Write a concise 3-bullet recommendation for the CEO that quantifies expected impact at scale (use provided numbers), states key assumptions, and proposes a 90-day rollout plan with success criteria.
EasyTechnical
23 practiced
Write a SQL query using window functions to flag outlier transactions per user where an outlier is defined as amount > mean + 3 * stddev over that user's transactions in the past 365 days. Assume table `transactions(user_id, transaction_id, amount, occurred_at)`. Explain how you handle users with fewer than 5 transactions.
HardTechnical
33 practiced
Describe how you quantify and communicate uncertainty for a projected revenue uplift estimate. Include use of confidence intervals, scenario analysis, probabilistic statements, and visualizations you would use in an executive summary to avoid misleading certainty.
HardTechnical
39 practiced
You need to monitor and attribute the long-term downstream effects (90-day churn reduction) of a one-week promotion that targeted a subset of users. Describe the analytic design (control selection, attribution window, handling of censoring), metrics, and visualization approach to show impact over time and confidence in estimates.
HardTechnical
33 practiced
You're working with a niche user segment where weekly sample size is very small and observed conversion rates are noisy. Describe statistical strategies (including Bayesian approaches, shrinkage, and hierarchical models) you would use to produce stable estimates and how you'd present them to stakeholders with appropriate uncertainty.

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