The 3 – sigma upper limit for a control chart for average number of nonconformities per unit, is expressed by ___________

Question

TuteeHUB · Accepted Answer

UCL=$\bar{u} – 3\sqrt{\frac{\bar{u}}{n}}$

TuteeHUB · Answer

UCL=$\bar{u} + 3\sqrt{\frac{\bar{u}}{n}}$

TuteeHUB · Answer

UCL=$\bar{u} – 3\sqrt{\frac{\bar{u}}{n}}$

TuteeHUB · Answer

UCL=$\bar{u} – 2\sqrt{\frac{\bar{u}}{n}}$

TuteeHUB · Answer

UCL=$\bar{u} – \frac{3}{2} \sqrt{\frac{\bar{u}}{n}}$

1.	The 3 – sigma upper limit for a control chart for average number of nonconformities per unit, is expressed by ___________
A.	UCL=\(\bar{u} + 3\sqrt{\frac{\bar{u}}{n}}\)
B.	UCL=\(\bar{u} – 3\sqrt{\frac{\bar{u}}{n}}\)
C.	UCL=\(\bar{u} – 2\sqrt{\frac{\bar{u}}{n}}\)
D.	UCL=\(\bar{u} – \frac{3}{2} \sqrt{\frac{\bar{u}}{n}}\)
Answer» B. UCL=\(\bar{u} – 3\sqrt{\frac{\bar{u}}{n}}\)

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