Top 21
Prep plan
Updated weekly · Last refresh Sep 29

Niche Data Analyst Interview Questions

The questions to prepare for a Niche Data Analyst interview. Questions from real interview reports rank first. Updated daily.

21questions
~3htotal time
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1
MetricsStart here. 9 questions · ~74 min
Analyze User Engagement Drop After Feature ReleaseMedium

Assess the 15% drop in user engagement after a new app feature release and propose metric decomposition strategies.

Niche
Investigate User Engagement DeclineMedium

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

RetentionDiagnosisEngagement MetricsNiche
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2
Statistics & Probability5 questions · ~41 min
A/B Testing for Product FeaturesMedium

Explain how to design and evaluate an A/B test for a product feature, including metrics, MDE, sample size, and guardrails.

Hypothesis TestingStatistical SignificanceA/B TestingNiche
A/B Testing with Limited TrafficHard

Tests experimental design, power considerations, and decision-making under constraints.

Power AnalysisSample SizeA/B TestingNiche
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3
More topics7 questions · ~57 min
Data Cleaning in ETL PipelinesEasy

Approach for cleaning and preparing raw data inside an ETL pipeline.

Data WranglingETLQualityNiche
Data Cleaning ExperienceMedium

Evaluates your experience with data cleaning techniques and quality checks relevant to Niche’s reporting.

data cleaningNiche
Data Visualization ToolsEasy

Explain which data visualization tools you prefer, why you choose them, and how you match tools to analytical use cases.

User Researchtechnical usersValue PropositionNiche
Handling Missing Data in PipelinesMedium

Approach for handling missing data in an ML data pipeline, including validation, imputation, and safe downstream consumption.

InfrastructureETLBatch ProcessingNiche
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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 21 questions plus 3 hands-on drills to finish this plan.