Likely reasons for inaccurate control limits would include which of the following?
A. Process variation was not zero, as expected. B. The engineers were underpaid for their work. C. The engineering parameter for variance is unknown. D. There was insufficient preliminary sampling.
A. Process variation was not zero, as expected. B. The engineers were underpaid for their work. C. The engineering parameter for variance is unknown. D. There was insufficient preliminary sampling.
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