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A multiplier of R used to calculate the control limits for averages.
The number of nonconformities in a sample.
The Capability Index. Defined as Z min/3
A divisor of R used to estimate the process standard deviation.
Multiplier of R used to calculate the lower and upper control limits, respectively, for ranges.
The number of subgroups being used to calculate control limits.
The lower control limit.
The lower engineering specification limit.
The number of individuals in a subgroup (the subgroup sample size).
The average subgroup sample size.
The number of nonconforming items in a sample size of n.
The average number of nonconforming items in samples of constant size n.
The proportion of units nonconforming in a sample.
The average proportion of units nonconforming in a series of samples (weighted by sample size).
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