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Advanced MSA of Continuous Data Part 3: Are 3 Operators or 2 Replicates Enough?


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As with the previous post, I'll let Minitab do the talking here. See Gauging Gage Part 2: Are 3 Operators or 2 Replicates Enough?

Minitab answers the question "If I increase the number of operators/replicates, can I reduce the number of parts to compensate?" In short, the answer is "No". If you do, you will actually increase the estimate of process variation and make your R&R appear worse.
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