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Buy 6,000 labeled records or build a smaller dataset yourself? Defend the data budget.

Try it in the practice workspaceDraft your answer before comparing it with the rubric.

A vendor has more rows, while an internal pilot has higher accepted yield. Compare usable evidence, uncertainty and the work hidden in the quote.

Updated Nov 2026 · Original practice questions with worked answers and teaching rubrics. Our editorial policy explains the sources, review process and limits.

Case briefRead the inputs, then make your call

Fictional repair-request labeling plan. Acceptance requires permitted use, uniqueness, workflow fit and labels meeting the current policy. Initial rights review passed for both sources. Audit samples are assumed independent and randomly drawn from their target deliveries; verify those assumptions. Costs and pay are illustrative.

Scenario inputs
Vendor delivered records6000
Vendor price, USD9000
Vendor audit sample400
Vendor accepted in audit160
Internal records to collect4000
Internal audit sample400
Internal accepted in audit320
Seconds per primary or second label45
Additional second labels500
Adjudications300
Seconds per adjudication90
Paid instruction and training hours10
Worker compensation per hour, USD32
Internal platform and coordination cost, USD640
Available worker-hours in the collection window90
Additional costsIndependent final evaluation and future maintenance are outside these quoted costs.

Your task. Compare expected accepted-record costs, all required worker time and delivery capacity. Explain uncertainty, missing slices and the evidence needed before scaling the order.

A vendor has more rows, while an internal pilot has higher accepted yield. Compare usable evidence, uncertainty and the work hidden in the quote.

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