Cpk
How to Calculate Process Capability: Red Bead Experiment Edition
Calculating process capability is a foundational skill in the world of quality management. For many practitioners, Deming’s Red Bead Experiment is an insightful introduction to the statistical phenomena behind variation, system constraints, and performance measurement. But how do you translate the outcomes of the Red Bead Experiment into meaningful process capability calculations? In this article, we’ll guide you step-by-step through the technical analysis, using concepts familiar to Six Sigma, Lean, and continuous improvement professionals.