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Updated weekly · Last refresh Aug 30

Arch Capital Data Analyst Interview Questions

The questions to prepare for a Arch Capital Data Analyst interview. Questions from real interview reports rank first. Updated weekly.

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~2htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 3 drills · ~54 min
Handling Missing Data in SQLEasy

Explain how to identify, assess, and handle missing values in SQL using NULL checks, COALESCE, and validation logic.

Data WranglingCase WhenQualityArch Capital
Normalization in Trade Data ModelsEasy

Explain normalization, why it improves data integrity, and how it shapes relational trade data design.

normalizationsqldatabase designArch Capital
Data Modeling ExperienceMedium

Assesses your ability to design and structure data for reporting and analysis.

Data ModelingArch Capital
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Normalize Messy CRM Contact DataHard
Practice
Practice drill

Clean inconsistent CRM contacts by joining source tables, standardizing values, and flagging bad records.

Data WranglingCase WhenQualityAlphaSense
Validate Monthly Revenue Data QualityHard
Practice
Practice drill

Use joins, a CTE, and CASE logic to flag messy monthly order data and produce cleaned revenue by month.

Data WranglingCase WhenQualityLiterati
2
Behavioral & Leadership9 questions · ~72 min
Presenting Analysis to Non-Technical LeadersEasy

Tests whether you can translate complex analysis into a clear, decision-oriented story for non-technical stakeholders.

Stakeholder ManagementCommunicationstarArch Capital
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3
More topics4 questions · ~32 min
Trends and Anomalies in ClaimsMedium

Tests your ability to find meaningful patterns and detect outliers in claims-related data.

Lagging IndicatorsLeading IndicatorsDiagnosisArch Capital
Improving Processes with DataMedium

Tests your end-to-end problem framing, analysis approach, and ability to drive process improvements.

Feature PrioritizationUser NeedsUse CasesArch Capital
Common Statistical MethodsMedium

Tests your practical knowledge of statistical methods for data analysis and decision-making.

Confidence IntervalsRegressionHypothesis TestingArch Capital
Designing a Product Effectiveness StudyHard

Tests your experimental design skills for evaluating product impact with valid statistical conclusions.

ExperimentationGuardrail MetricsA/B TestingArch Capital

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The finish line: interview-readyComplete all 16 questions plus 3 hands-on drills to finish this plan.