•     In Chapter 8, expanded material on adding runs to a fractional factorial to de-alias effects.

• New material on small, efficient resolution IV and V designs.

•   Chapter 11 from the prior edition is divided into two chapters: one on RSM and mixtures (Chapter 11), the other on robust parameter design and process robustness studies (Chapter 12).

•   More coverage of split-plot design in Chapter 13.

•   New homework problems to replace 25% of the problems in the previous edition.