Diagnose Cold Food Deliveries with Key Metrics Analysis

Q: Diagnose Cold Food Deliveries with Key Metrics Analysis

This question evaluates a data scientist's competency in diagnostic analytics, metric decomposition, and controlled-experiment design for operational delivery problems like cold food arrivals.

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Question

Diagnosing and Testing Solutions for Cold Food Deliveries

Scenario

You are a data scientist at a food-delivery marketplace experiencing a spike in customer complaints that delivered meals arrive cold.

Task

How would you diagnose why customers receive cold food?
What key metrics would you break down and monitor?
Design an A/B test to evaluate a solution intended to keep food hot.

Hints

Consider the end-to-end supply chain: kitchen prep, handoff, courier routing, batching/stacking, packaging, and time in transit.
Define leading vs lagging metrics, success criteria, and the assignment unit for the experiment.

Diagnose Cold Food Deliveries with Key Metrics Analysis

Diagnosing and Testing Solutions for Cold Food Deliveries

Scenario

Task

Hints

Solution

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