... an understanding of process capability and how an improvement can be statistically validated. To understand the “check” phase of the plan-do-check-act cycle of Deming, using basic statistical principles. © The Kellogg School of Management at Northwestern University 2006 Cases are developed solely as the basis...

... an understanding of process capability and how an improvement can be statistically validated. To understand the “check” phase of the plan-do-check-act cycle of Deming, using basic statistical principles. This case was prepared by Professor Sunil Chopra. What fraction of the days in 2003–2004 failed...