This question evaluates a data scientist's competency in operational analytics, causal investigation, metric decomposition, and experiment design within the Analytics & Experimentation domain.

DoorDash observed that driver (Dasher) wait time at restaurants spiked last week versus the prior week.
Walk through how you would debug the increase in Dasher wait time. Specify the metrics, segments, and analyses you would use to find the root cause. If you confirm restaurant understaffing is responsible, propose actions or experiments to address the problem.
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