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Quality and Process Methods > Process Capability > Statistical Details for the Process Capability Platform
Publication date: 12/16/2025

Statistical Details for the Process Capability Platform

This section contains statistical details for the Process Capability platform.

Statistical Details for Variation Statistics

Statistical Details About Notation

Statistical Details for the Goal Plot

Statistical Details for Capability Box Plots

Statistical Details for Capability Indices for Normal Distributions

Statistical Details for Capability Indices for Nonnormal Distributions

Statistical Details for the Parameterizations of Distributions

Notes:

For sample sizes up to n = 100, JMP uses control chart constants d2(n) and d3(n) that are defined in Table 2 of Harter (1960). For samples with a sample size greater than 100, JMP uses the control chart constant values for sample size 100 in both the sigma and control limit calculations.

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