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Prep plan
Updated weekly · Last refresh Aug 30

Ormae Data Scientist Interview Questions

The questions to prepare for a Ormae Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

23questions
~3htotal time
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1
SQL & Data ManipulationStart here. 4 questions + 3 drills · ~62 min
2
Machine Learning6 questions · ~48 min
ARIMA vs Prophet ForecastingMedium

Tests ability to select forecasting methods and reason about assumptions and scalability.

ForecastingOrmae
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3
Behavioral & Leadership5 questions · ~40 min
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4
More topics8 questions · ~64 min
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchOrmae
Diagnose a Metric Drop After LaunchMedium

Investigate why a key KPI moved the wrong way after a product change and separate signal from noise.

Lagging IndicatorsLeading IndicatorsDiagnosisOrmae
Optimizing PySpark PipelinesHard

Tests performance tuning skills for distributed data processing and efficient transformations.

pysparklarge datasetsoptimizationOrmae
Evaluating Supply Chain ForecastsEasy

Tests metric selection and interpretation for forecasting accuracy and systematic error.

BiasMAEOrmae
Feedback Loop for Planner OverridesMedium

Tests system thinking for incorporating human corrections into forecasting or planning workflows.

Ormae
Choosing Statistical SignificanceEasy

Tests judgment about hypothesis testing thresholds and control of false positives.

Statistical SignificanceAnalysisOrmae
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The finish line: interview-readyComplete all 23 questions plus 3 hands-on drills to finish this plan.