Glossary Terms Archive

Champions in Six Sigma

A Champion in Six Sigma represents the highest level of executive leadership commitment to organizational transformation through data-driven process improvement. These senior leaders provide strategic direction, remove barriers, and ensure that Six Sigma initiatives...

Central Limit Theorem

The Central Limit Theorem (CLT) stands as one of statistics’ most fundamental concepts. This powerful theorem explains how sample means behave when drawn from any population. Understanding CLT meaning helps statisticians make predictions about unknown...

Central Composite Design in Six Sigma: Types, and When to Use It

Every Six Sigma Black Belt reaches a point in the Improve phase where a two-level factorial design is no longer enough. The team has identified the key factors. They know the direction of improvement. But the relationship between inputs and outputs is curved, not...

Center Points

Center points serve as fundamental concepts across mathematics, geometry, engineering, and everyday applications. Whether you’re designing architectural layouts, solving geometric problems, or planning urban developments, understanding center points becomes...

C Chart and U Chart: When to Use Each and How They Work

Not all quality problems show up as measurements. Sometimes what matters is not how long a shaft is or how heavy a component is — it is how many defects were found on a circuit board, how many errors appeared in a document, or how many paint blemishes were recorded on...