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Commercializing Great Products with Design for Six Sigma by David W. Bacon, Randy C. Perry

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Appendix A. Glossary

A

α risk The probability of rejecting a null hypothesis when in fact it is true.

Accelerated Life Testing (ALT) Testing a product under more severe conditions than it would normally experience, in order to identify within a limited time period what the reliability of a product would be over its normal lifetime.

accuracy Closeness of a measured value to the "true" value.

alternative hypothesis The collection of all possible outcomes if the null hypothesis is not true.

Analysis Of Variance (ANOVA) A calculation of the portions of the overall variation in a set of data that can be attributed to identified sources.

attribute data Discrete or categorical data.

axial point A location of a run in a response surface design that enables ...

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