statistics Estimate the process parameters µ and s

| January 30, 2017

Question
The following .transtutors.com/qimage/image09062014658.png” alt=” width=”>and scharts based on n=4 have shown statistical control:

.transtutors.com/qimage/image09062014658.png” alt=” width=”>Chart

sChart

UCL = 710

UCL = 18.08

Center line = 700

Center line = 7.979

LCL = 690

LCL = 0

(a) Estimate the process parameters µ and s.

(b) If the specifications are at 705 ??15, and the process output is normally distributed, estimate the fraction nonconforming.

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