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Learn how to properly implement Process Capability Analysis (Cpk/Ppk) in Minitab, focusing on the critical prerequisites of stability and normality to avoid misleading quality metrics.
Learn how to use Minitab to distinguish between Cpk and Ppk to identify whether your process is unstable or simply off-center, including a diagnostic comparison table.
Minitab's red non-normality warning in Capability Analysis comes from the Anderson-Darling test (p < 0.05), but small samples, outliers, and mean shifts trip the same flag. This diagnostic guide walks through ordered checks, fixes for each cause, and when to escalate.
Learn how to calculate and interpret Cpk and Ppk in Minitab to determine process capability, handle non-normal data, and validate results against engineering specifications.
Stop confusing Cp and Cpk. Learn how to use Minitab's Capability Analysis to determine if your process needs a simple mean adjustment or a total overhaul to reduce variation.
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