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Specifications on a normally distributed dimension are 600 ± 20 . ¯x and R charts are maintained on this dimension and have been in control over a long period of time. The parameters of these control charts
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Specifications on a normally distributed dimension are 600 ± 20 . ¯x and R charts are maintained on this dimension and have been in control over a long period of time. The parameters of these control charts are as follows (n = 9).

(a) What are your conclusions regarding the capability of the process to produce items within specifications?
(b) Construct an OC curve for the x chart assuming that sigma is constant.

User Herman Toothrot
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Specifications on a normally distributed dimension are 600 ± 20 . ¯x and R charts-example-1
User Kevin Baker
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