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Wayfair Business Analyst Interview Questions

The questions to prepare for a Wayfair Business Analyst interview. Questions from real interview reports rank first. Updated weekly.

Calculate Monthly Sales Growth by Product CategoryMedium

Calculate month-over-month sales growth for each product category using JOINs and window functions.

JoinsAggregations
Recently asked
Wayfair
Top Product Revenue Last 30 Days
Medium

Use joins, a CTE, and aggregation to rank the top 5 products by non-returned revenue in the last 30 days.

Date FunctionsJoinsAggregations
Wayfair
Top Products per Category Sales
Medium

Use a CTE and ROW_NUMBER to return the top 2 products by revenue within each category from completed orders.

Window FunctionsRankingGroup By
Wayfair
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Investigate Forecast Accuracy DropHard

Tests diagnostic thinking, data validation, and root-cause analysis for forecasting issues at Wayfair.

KPIsLeading IndicatorsDiagnosis
Recently asked
Wayfair
Executive Dashboard for Fulfillment
Medium

Tests KPI selection, dashboard design, and communication of operational performance to executives at Wayfair.

KPIsLeading IndicatorsDiagnosis
Recently asked
Wayfair

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Forecasting Promo Anomalies
Hard

Tests time-series anomaly handling and baseline forecasting adjustments for Wayfair demand planning.

ExperimentationCausal InferenceTime Series
Recently asked
Wayfair
Forecasting New Product Demand
Hard

Tests approaches to demand forecasting with cold-start data and assumptions for Wayfair’s catalog expansion.

RegressionCausal InferenceTime Series
Recently asked
Wayfair
CastleGate Storage Metrics
Medium

Tests prioritization and metric selection for inventory placement decisions under capacity constraints at Wayfair.

EstimationPricing StrategyEconomies of Scale
Recently asked
Wayfair