A Primer on the Taguchi Method

A₁ American Supplier Institute analysis of variance assigned to columns average of performance B₁ B₂ brainstorming C₁ C₂ cake calculated COLUMN FACTORS LEVEL combination computed confidence interval confidence level Current grand average degrees of freedom design of experiments determine E₁ engineering error DOF error term estimate Example experiment design factorial experiment Figure influence LEVEL 1 LEVEL level column level factors linear graph loss function manufacturer measured molding process n₂ noise factors number of experiments number of factors Number of levels number of repetitions Observation optimum condition Orthogonal Arrays outer array PERCENT CONTRIBUTION pooled pure sum quality characteristic result at optimum S/N ratio selected shown in Table significant smaller is better square deviation SQUARES VARIANCE sum of squares Taguchi approach Taguchi experiment Taguchi method target value tolerance trial conditions TRIAL NUMBER trial runs triangular table variables VARIANCE RATIO variation Y₁ Yo)²