Yang, Kai Design for six sigma : a roadmap for product development / Kai Yang, Basem El-Haik - 2nd ed. - New York : McGraw-Hill, c2009 - xx, 741 p. : ill. ; 24 cm. Includes bibliographical references (p. 709-716) and index ISBN: 9780071547673 (alk. paper) 0071547673 (alk. paper) Subjects--Topical Terms: Quality control--Statistical methodsExperimental design