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Quality and Process Methods > Process Capability > Statistical Details for the Process Capability Platform > Notation for Goal Plots and Capability Box Plots
Publication date: 11/10/2021

Notation for Goal Plots and Capability Box Plots

The formulas for the Goal Plot and Capability Box Plots use the following notation:

Yij = ith observation for process j

Equation shown here = mean of the observations on process j

SD(Yj) = standard deviation of the observations on process j

Tj = target value for process j

LSLj = lower specification limit for process j

USLj = upper specification limit for process j

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