Practice prompt · Q:statistics-estimation-and-uncertainty/outlier-treatment-001

Disposition a valid quartile-fence flag

Choose the evidence led response to Juniper's 78 day invoice.

Updated Aug 7, 2026 Review due Nov 7, 2026
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Choose a response and explain your reasoning.

Assessment-specific hypothetical: the 78-day invoice lies above the declared 42.5-day upper inner fence. Source tracing confirms a unique invoice, correct dates, final settlement, and eligibility. A documented customer dispute explains the delay. Which disposition is defensible?

An unusual valid record can be exactly the observation a business review needs to understand. Its effect on a preferred summary is not an exclusion rule.

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