Question: Hi, kindly help for Part (B). Cp = 1.57 & Cpk = 1.37 2. A process is in statistical control with X(= = 199 and

Hi, kindly help for Part (B). Cp = 1.57 & Cpk = 1.37

Hi, kindly help for Part (B). Cp = 1.57 & Cpk =

2. A process is in statistical control with X(= = 199 and F = 3.5. The control chart uses a sample size of n = 4. Specications are at 200 :i: 3. The quality characteristic is normally distributed- (a) Estimate the CP and CPL (b) How much improvement could be made in process performance if the mean could be centered at the nominal value? Answers: (a) 1.57 and 1.3 7; (b) From I 9 ppm to 2.6 ppm

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