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Updated weekly · Last refresh Sep 18
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American Electric Power Data Scientist Interview Questions

The questions to prepare for a American Electric Power Data Scientist interview. Questions from real interview reports rank first. Updated daily.

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~3htotal time
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1
A/B Testing & ExperimentationStart here. 4 questions · ~44 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingAAmerican Electric Power
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 MismatchAAmerican Electric Power
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2
SQL & Data Manipulation4 questions · ~44 min
Join Outage and DemographicsMedium
Practice

Explain and demonstrate how LEFT JOIN and INNER JOIN affect outage and customer demographic records.

null handlingJoinsjoin typesAAmerican Electric Power
Handling Nulls in AggregationsMedium
Practice

Aggregate monthly utility readings while distinguishing missing consumption values from zero usage.

missing valuesdata cleaningnull handlingAAmerican Electric Power
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3
Behavioral & Leadership4 questions · ~44 min
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4
More topics6 questions · ~65 min
Investigate User Engagement DeclineMedium

Investigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.

RetentionDiagnosisEngagement MetricsAAmerican Electric Power
Data Drift vs Code BugsHard

Diagnose declining production accuracy by separating input distribution changes from preprocessing, model, and serving code defects.

data driftmodel validationModel EvaluationAAmerican Electric Power
Sample Size for Pilot ProgramMedium

Tests statistical reasoning for choosing sample size to achieve sufficient power and significance.

Statistical SignificanceSample SizeAAmerican Electric Power
Metric for Energy-Savings PortalMedium

Tests ability to define actionable product metrics tied to customer outcomes at American Electric Power.

product metricsAAmerican Electric Power
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