ASQ
CQE · Question #76
CQE Question #76: Real Exam Question with Answer & Explanation
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Question
An X-bar and R chart with n=5 has been plotted for some time and has demonstrated random variation. Upon review of the last 30 plot points, the expected number of runs around the centerline on the X-bar chart is expected to be approximately which of the following?
Options
- A4
- B9
- C12
- D16
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