Estimate the capability ratio and comment on what it says

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Reference no: EM131432203

Capability of the film thickness process. The specifications call for film thickness 830 ± 25 mm × 10^-4.

(a) What is the estimate σ^{^} of the process standard deviation based on the sample standard deviations (after removing Samples 1 and 10)? Estimate the capability ratio C_p and comment on what it says about this process.

(b) Because the process mean can easily be adjusted, C_p is more informative than C_pk. Explain why this is true.

Reference no: EM131432203

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