The Six Sigma Handbook, Revised and Expanded, 2nd Edition

Appendix 1. Glossary of Basic Statistical Terms^[]

^[] From Glossary & Tables for Statistical Quality Control, prepared by the ASQ Statistics Division. Copyright # 1983, ASQ Quality Press [phone]. Reprinted by permission of the publisher.

Acceptable quality level

—The maximum percentage or proportion of variant units in a lot or batch that, for the purposes of acceptance sampling, can be considered satisfactory as a process average.

Analysis of Variance (ANOVA)

—A technique which subdivides the total variation of a set of data into meaningful component parts associated with specific sources of variation for the purpose of testing some hypothesis on the parameters of the model or estimating variance components.

Assignable cause

—A factor ...