ASQ
CQE · Question #81
CQE Question #81: Real Exam Question with Answer & Explanation
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Question
An X-bar and R chart was prepared for an operation using twenty samples with five pieces in each sample; X-bar was found to be 33.6 and R-bar was 6.20. During production, a sample of five was taken and the pieces measured 36, 43, 37, 25, and 38. At the time, this sample was taken:
Options
- ABoth the average and range were within control limits.
- BNeither the average nor range were within control limits.
- COnly the average was outside control limits.
- DOnly the range was outside control limits.
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