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Note: If you select a distribution other than Normal, you cannot assign a Subgroup ID column or a Historical Sigma. These selections are not supported by the methods used to calculate nonnormal capability indices. See Capability Indices for Nonnormal Distributions: Percentile and Z-Score Methods.
Specifies the method used to compute capability indices for nonnormal distributions. See Capability Indices for Nonnormal Distributions: Percentile and Z-Score Methods.
Specifies the method used to find the best-fitting Johnson distribution. Before estimating the parameters, the best-fitting family of distributions is determined from among the Johnson Su, Sb, and Sl families. The procedure described in Slifker and Shapiro (1980) is used to find the best-fitting family.