This book investigates the application of Analysis of Variance (ANOVA) as a critical statistical tool for process improvement within the Six Sigma framework. Lisa Custer, drawing on the methodologies established by the Six Sigma Research Institute, provides a technical examination of how variance analysis identifies sources of process variation. The text serves as a guide for practitioners to isolate variables and optimize performance through rigorous data interpretation and hypothesis testing.

Experts within the Six Sigma community recognize this text as a specialized resource for practitioners requiring a focused technical manual on statistical variance. Readers frequently note the high density of the mathematical content, which is intended for those already familiar with basic quality management principles.