An internal document-search product has two rankers with similar offline scores. Both return permission-checked document links. The pilot figures are illustrative.
Scenario inputs| Pilot | 200 sessions: 80 prefer B, 60 prefer A and 60 tie under a prespecified credit rule. |
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| Assumption to examine | The arithmetic exercise treats sessions as independent. Establish whether repeated users or queries violate this in practice. |
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| Product decision | Leadership wants to know whether to replace the ranker and whether search improves task completion. |
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Your task. Choose an experiment sequence, interpret the pilot and explain what the result can and cannot establish.