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Which of the Following Would Be Considered to Be a Nonrandom

Question 12

Multiple Choice

Which of the following would be considered to be a nonrandom pattern on a control chart?


A) 2 out of 3 data points above the grand mean.
B) 5 successive points between -1 and +1 sigma
C) 1 data point above -1 sigma or below +1 sigma
D) 14 points in a row, alternating up and down

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