What is gage R&R in Measure phase of "DMAIC) of Six Sigma green belt.
#Purpose of Gage R&R in #Measure #Phase: 1.Ensures data reliability before proceeding to Analyze phase. 2.Separates measurement error from true process variation. 3.Identifies weak points in equipment, operator technique, or procedures. 4.Prevents costly errors such as rejecting good parts (Type I error) or shipping bad parts (Type II error). Key Components: 1.Repeatability (Equipment Variation) (a) Variation when the same operator measures the same part multiple times. (b) Indicates instrument precision. 2. Reproducibility (Appraiser Variation) (a) Variation when different operators measure the same part with the same gauge. (b) Indicates consistency across operators. 3. Part-to-Part Variation (a) Natural differences among parts, used as a baseline to judge measurement variation. #Acceptance #Criteria (10/30 Rule) (a) <10% of total variation → Acceptable measurement system. (b) 10–30% → Marginally acceptable; depends on risk, cost, and application. (c) > 30% → Unaccepta...