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Four samples of 100 each were taken from an assembly line, with the following results:
Using the historical average as the central line of the chart, which one of the following is the limits for an attributes control chart with z = 2?
Sample Number Number Defective
1 6
2 12
3 2
4 8
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Solution Summary
This solution determines which sample has limits for an attributes control chart with z=2.
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