MA.7:4.3 - Test the explanation behind the arithmetic

Ask what actually changed each consequential component. Compare operating evidence, terms and relevant conditions. Higher material use per accepted unit might follow a harder product mix, failed attempts, a measurement change or a process defect.

Distinguish association and assigned arithmetic effect from a supported causal explanation. Investigate the rival explanations that would lead to different actions. If adequate evidence is unavailable, return the bounded uncertainty and the next observation or specialist result that could resolve it.