Question: A process is in statistical control with x ï½ 75 and s ï½ 2.0 . The process specifications are at 80 ï± 8. The sample

A process is in statistical control with x ï€½ 75 and s ï€½ 2.0 . The process specifications are at 80 ï‚± 8. The sample size is n= 5.

(a) Estimate the potential capability.
(b) Estimate the actual capability.
(c) How much could process fallout be reduced by shifting the mean to the nominal dimension? Assume that the quality characteristic is normally distributed.

i-75;S =2,0=S/G, =2/0.9400=2.13

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