... 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. © The Kellogg School of Management at Northwestern...

... 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. Proportion of days within specification = 491 / 731 = 0.672. In this analysis we want to bring up two...