Under what circumstances will the process capability indexes and be equal?
A)They will be equal when the process is in control.
B)They will be equal when the natural tolerance limits of the process are inside the specification limits.
C)They will be equal if the process mean $\mu$ is outside the specification limits.
D)They will be equal if the process mean$\mu$is centered midway between the lower specification limit (LS
L)and the upper specification limit (US
L).
E)They will be never be equal because has 3$\sigma$ in the denominator but has 6$\sigma$.

Question

Under what circumstances will the process capability indexes  and  be equal?
A)They will be equal when the process is in control. 
B)They will be equal when the natural tolerance limits of the process are inside the specification limits. 
C)They will be equal if the process mean $\mu$ is outside the specification limits. 
D)They will be equal if the process mean$\mu$is centered midway between the lower specification limit (LS
L)and the upper specification limit (US
L). 
E)They will be never be equal because has 3$\sigma$ in the denominator but has 6$\sigma$.

Quizplus · Accepted Answer

The process capability indexes 11eab14b_c876_700d_9166_8772181795ab_TB5065_11 and 11eab14b_c876_971e_9166_839060fbaacd_TB5065_11 will be equal only when the process mean is centered midway between the lower and upper specification limits. This is because both indexes use the same denominator (which contains the process standard deviation), and the numerator for both indexes will be equal when the process mean is at the midpoint between the specification limits.

Under What Circumstances Will the Process Capability Indexes and μ\muμ

Under What Circumstances Will the Process Capability Indexes and $\mu$