(a) It is said that is not possible to improve the quality of a product by post- manufacture inspection. Why is this so?

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(a) It is said that is not possible to improve the quality of a product by post- manufacture inspection. Why is this so?

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A It Is Said That Is Not Possible To Improve The Quality Of A Product By Post Manufacture Inspection Why Is This So 1
A It Is Said That Is Not Possible To Improve The Quality Of A Product By Post Manufacture Inspection Why Is This So 1 (36.62 KiB) Viewed 34 times
(a) It is said that is not possible to improve the quality of a product by post- manufacture inspection. Why is this so? (b) Why is it preferable to improve a process by tackling non-random errors before random errors? (c) A statistical process control chart will have a central line, and upper and lower control limits. What action should you take if you observe values outside of the control limits? (d) Show by means of sketches of appropriate statistical process control charts why is it necessary to track both variation and spread of process data to be in control of the process?
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