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Quality and Process Methods > Process Capability > Statistical Details for the Process Capability Platform
Publication date: 01/13/2026

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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