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Find the overall mean and the average range of the packaging process. A ) 2 0 . 6 and 4 . 2 5 B )
Find the overall mean and the average range of the packaging process.
A and
B and
C and
D and
E and
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Find the lower and upper control limits of the sample mean control chart.
A and
B and
C and
D and
E and
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Find the lower and upper control limits of the Rcontrol chart.
A and
B and
C and
D and
E and
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Is the dispersion of the process in control, why?
A No because one or more sample means exceeded the control limits
B Yes, because all sample means fall within the control limits
C No because one or more of the ranges exceeded the control limits
D Yes, because all of the ranges fall within the control limits
E There is not enough information to make a decision.
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