Your AI forecast says next week needs one hundred twenty units. Should you buy that many? Not automatically. This explanatory question and answer uses hypothetical figures, not a real business interview. Separate three things: the central estimate, the uncertainty interval, and the stock target chosen by a buyer. A prediction interval is not a guaranteed minimum or maximum. Test historical forecasts using only information available at the time. Match the forecast horizon to supplier lead time. Check interval coverage and width, and compare with a simple baseline. Suppose the buyer chooses a target of one hundred forty units and thirty usable units remain. The draft replenishment is one hundred ten, before checking inbound stock and order constraints. This is an example, not a purchasing formula. Save the original forecast, the buyer decision, reasons for overrides, and the eventual result. Keep purchasing approval explicit. The visuals and narration are AI-assisted, and all numerical examples are hypothetical.