Every AP Statistics inference test. One coherent framework. Built and field-tested in a real classroom. This is not a collection of formula sheets. It is a complete instructional arc — from the conceptual foundation of what inference actually is, through test selection, conditions, calculation, decision-making, and conclusion — organized around the 8-Step Statistician's Core Loop so students understand the architecture, not just the procedures. ────────────────────────────────────── CURRICULUM A