1. 2-Way Random Effects ANOVA Gage Repeatability and Repeatability Experiment for Measuring Drill Holes in Wood Parts Source: M-H. C. Li and A. Al-Refaie (2008). “Improving Wooden Parts’ Quality by Adopting DMAIC Procedure,” Quality and Reliability Engineering International, Vol. 24, pp. 351-360

2. Data Description Gage Repeatability and Reproducibility Experiment Response: Measured Diameter of Drill Hole (mm/10) Factors:  A: Drill Hole (Random Factor, a = 10 Levels)  B: Measurer (Random Factor, b = 3 Levels) Replications (3 replicates per Measurer/Hole, in random order)

3. Statistical Model

4. Expected Mean Squares - I

5. Expected Mean Squares - II

6. Expected Mean Squares - III

7. Estimating and Testing Variance Components

8. Experimental Model/Results

9. Tests and Confidence Intervals