Question: Other things remaining the same, and assuming that X-bar-bar is smaller than USL and larger than LSL, if the standard deviation () of the process
Other things remaining the same, and assuming that X-bar-bar is smaller than USL and larger than LSL, if the standard deviation () of the process decreases, process capability index (Cpk) of the process will
Will always increase.
Will sometimes increase
Will always decrease.
Stay the same.
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