Page 236 - The Six Sigma Project Planner

Figure 40. Attribute Gauge R&R Dialog Box and Data Layout

“Agreement Within Appraiser” Analysis
MINITAB evaluates the repeatability of appraisers by examining how often the
appraiser “agrees with himself/herself across trials.” It does this by looking at all of the
classifications for each part and counting the number of parts where all classifications
agreed. For our example, the appraisers looked at two parts four times each.
MINITAB’s output, shown in Figure 41, indicates that InspA rated 50% of the parts
consistently, InspB 100%, and InspC 0%. The 95% confidence interval on the percentage
agreement is also shown. The results are displayed graphically in Figure 42.

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