IntermediateSITUATIONAL
Imagine you are assigned a new problem where a senior data scientist asks you to estimate the impact of a recent marketing campaign using historical data. Based on your previous projects, how would you structure your approach from data extraction through basic statistical analysis and reporting?
Custom Role
General

Sample Answer

I’d start by clarifying the exact business question: is the goal incremental revenue, conversions, or another KPI, and over what time window? Then I’d work with data engineering or directly query our warehouse to pull three pieces: historical performance for at least 6–12 months, campaign exposure data (who saw which touchpoints), and core dimensions like channel, geo, and device. Method-wise, I’d first build a clean pre/post timeline and a simple baseline forecast using historical trends and seasonality, then compare that to actuals to get a quick read. In parallel, if we had a control group or unexposed regions, I’d set up a difference-in-differences or matched control analysis. I’d run basic checks for parallel trends and use robust standard errors. For reporting, I’d summarize: estimated lift (e.g., +8% conversions, +$420K revenue), confidence intervals, assumptions, and 2–3 actionable recommendations, with clear charts that a non-technical VP can digest in five minutes.

Keywords

Clarify business objective and time horizon before touching dataExtract historical, exposure, and dimensional data from warehouseUse baseline forecasting plus control-based methods like diff-in-diff where possibleReport impact with confidence intervals, clear assumptions, and executive-friendly visuals
Related Questions

On your resume you mention working on a cross-functional project (e.g., involving multiple teams or stakeholders). Describe a situation from that project where priorities conflicted—how did you navigate the trade-offs and what was the final outcome?

IntermediateSITUATIONAL

Based on your hydrology and irrigation engineering background, explain how you would estimate the irrigation water requirement for a kharif crop in a semi-arid region of Gujarat. Walk me through each step: from reference evapotranspiration estimation, crop coefficient selection, effective rainfall calculation, to arriving at canal discharge for a given command area.

IntermediateTECHNICAL

In your civil engineering studies, what specific design coursework or project work did you complete related to irrigation channels or canals (e.g., design of lined/unlined canals, distributaries, minors)? Describe one such design in detail, including how you determined discharge, permissible velocity, section dimensions, and lining choice for Gujarat-type soil and climate conditions.

IntermediateTECHNICAL

Walk me through a recent multi-channel digital marketing campaign you managed end-to-end. How did you set objectives, choose channels, allocate budget, and measure success?

IntermediateBEHAVIORAL

In your resume you note improving or optimizing [a process, KPI, or metric]. What specific baseline metrics did you start from, what steps did you personally take, and how did you verify that the improvement was due to your changes rather than external factors?

IntermediatePROBLEM_SOLVING