4 DQs

1- For example the space shuttle Challenger disaster was a result of an o-ring failure due to cold weather that was flagged as an issue but not listened to by management due to a need to fly the mission – safety took a back seat. 4- The goal of SPC is to control variation in a process. Discuss what variation means and what the sources of it are? Can all variation be eliminated? How can a process go out of control? Remember: you must write a “significant” post with 1-2 references in APA format , with URLs.  Significant means 300-400 words. one case study.