6SIGMA术语列表解释9（完）[教学]

WACC: Weighted Average Cost of Capital

X-BAR CHART: average chart

X-BAR AND R CHARTS: Applies to variable data and is used to create control charts for the average and range of subgroups of data.

X-BAR AND S CHARTS: For variable data; control charts for the average and standard deviation (sigma) of subgroups of data.

Z DISTRIBUTION: see “Standardized Normal Distribution”.

Z VALUE: a standardized value formed by subtracting the mean and then dividing this difference by the standard deviation.



Compiled from “The Quality Glossary”, Quality Progress - February 1992, American Society for Quality, and other sources.