What is the value of Zi in the standardized control chart for u-chart with variable sample size?

Question

TuteeHUB · Accepted Answer

$\frac{u_i-\bar{u}}{\sqrt{\frac{\bar{u}}{\bar{n}}}}$

TuteeHUB · Answer

$\frac{u_i+\bar{u}}{\sqrt{\frac{\bar{u}}{\bar{n}}}}$

TuteeHUB · Answer

$\frac{u_i+\bar{u}}{\sqrt{\frac{\bar{u}}{n_i}}}$

TuteeHUB · Answer

$\frac{u_i-\bar{u}}{\sqrt{\frac{\bar{u}}{n_i}}}$

TuteeHUB · Answer

$\frac{u_i-\bar{u}}{\sqrt{\frac{\bar{u}}{\bar{n}}}}$

1.	What is the value of Zi in the standardized control chart for u-chart with variable sample size?
A.	\(\frac{u_i+\bar{u}}{\sqrt{\frac{\bar{u}}{\bar{n}}}}\)
B.	\(\frac{u_i+\bar{u}}{\sqrt{\frac{\bar{u}}{n_i}}}\)
C.	\(\frac{u_i-\bar{u}}{\sqrt{\frac{\bar{u}}{n_i}}}\)
D.	\(\frac{u_i-\bar{u}}{\sqrt{\frac{\bar{u}}{\bar{n}}}}\)
Answer» D. \(\frac{u_i-\bar{u}}{\sqrt{\frac{\bar{u}}{\bar{n}}}}\)

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