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Data Analysis and Performance Measurement Questions

Covers the end to end use of quantitative analysis to track, interpret, and act on business performance across accounts and campaigns. Candidates should be fluent in account level metrics such as customer retention rate, net revenue retention, annual recurring revenue, net promoter score, customer health scores, and customer lifetime value, as well as marketing and acquisition metrics such as click through rate, conversion rate, customer acquisition cost, return on advertising spend, and attribution model outcomes. Expect discussion of data sources and instrumentation, cohort and funnel analysis, segmentation, anomaly detection, attribution approaches, and calculating return on investment for initiatives. Candidates should be able to describe how they used analytics tools and queries, dashboards, and experiments or A B tests to identify at risk accounts or underperforming campaigns, prioritize actions, optimize strategies, and measure the impact of initiatives. Strong answers explain concrete metrics chosen, analysis methods, tools used, how results informed decisions, and how success was measured over time.

HardTechnical
0 practiced
A stakeholder requests a single source of truth for campaign ROI combining marketing spend, ad platform clicks, and CRM sales-qualified-opportunities with complex lead-to-opportunity conversion windows. Draft a technical and organizational plan that defines canonical metrics, data contracts, ETL flows, conflict resolution policies, owners, and a governance model to maintain trust.
EasyTechnical
0 practiced
Define Customer Acquisition Cost (CAC), Customer Lifetime Value (LTV), and the LTV:CAC ratio. Describe a simple method to estimate LTV for a subscription product using average monthly revenue per user (ARPU) and average monthly churn rate. Describe assumptions and provide the formula.
MediumTechnical
0 practiced
Explain propensity score matching (PSM). In the context of evaluating an acquisition channel that was not randomized, describe how to build propensity scores, create matched samples, check balance, and estimate treatment effect. List assumptions and common pitfalls.
EasyTechnical
0 practiced
Explain Net Promoter Score (NPS): how it is calculated from survey responses, what the categories promoter/passive/detractor mean, common ways to analyze NPS by segment, and limitations of using NPS as a single health metric.
HardTechnical
0 practiced
Design an experimentation platform flow to ramp up marketing spend using sequential hypothesis testing and multi-armed bandits while controlling business risk. Define stopping rules, alpha-spending strategy, risk budget, and how to quantify opportunity cost of exploration vs exploitation.

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