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Nalley Consulting Interview Questions

The questions to prepare for Nalley Consulting interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
A/B Testing & ExperimentationStart here. 3 questions · ~24 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 MismatchNNalley Consulting
Sample Size and Inconclusive ResultsMedium

Assesses power and sample size reasoning and how you handle inconclusive experiments.

Sample SizeNNalley Consulting
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2
Behavioral & Leadership4 questions · ~32 min
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3
More topics8 questions · ~64 min
First Checks for Metric DropsEasy

Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.

Lagging IndicatorsLeading IndicatorsDiagnosisNNalley Consulting
Handling Missing and Skewed DataMedium

Explain how to handle NULLs, skewed values, and outliers when preparing an analysis dataset using SQL.

Data Qualitynull handlingData WranglingNNalley Consulting
Explain Statistical SignificanceMedium

Assesses communication skills for conveying statistical ideas to non-technical audiences.

CommunicationStatistical SignificanceNNalley Consulting
Balance Speed and Accuracy MetricsMedium

Assesses product metric tradeoffs between responsiveness and measurement accuracy.

AccuracyNNalley Consulting
Investigate Metric DropMedium

Diagnose a below-expectations product metric drop using decomposition, guardrails, and experiment checks.

metric selectionDiagnosiskpi hierarchyNNalley Consulting
Assess Statistical SignificanceMedium

Tests understanding of hypothesis testing and how to interpret statistical significance.

Data AnalysisStatistical SignificanceNNalley Consulting
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 15 questions plus 3 hands-on drills to finish this plan.