Question: Specifications on a normally distributed dimenson are 600 =+ - 20 X and R charts are maintained on this deminson and have been in control

Specifications on a normally distributed dimenson are 600 =+ - 20 X and R charts are maintained on this deminson and have been in control over a long perood of time. The parameters of these control charts are as follows (n = 9).

X chart R chart

UCL 616 UCL 32.36

CL 610 CL 17.82

LCL 604 LCL 3.28

Construct an OC curve for the x chart assuming the sigma is constant.

(Please show all steps to better understand what represents what and how you got it.) Thank you

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