The centerline of a c control chart is determined to be 16. Based on these information,...
The centerline of a c control chart is determined to be 16. Based on these information, an observed c of 25 indicates
a. The process is in control because the observed c is greater than the lower control limit of 4
b. The process is in control because the observed c is smaller than the upper control limit of 28
c. The process is in control because the observed c is between the lower control limit of 4 and the upper control limit of 28
d. Not enough information given to answer this question
Homework Answers
UCLc = C(bar) + 3sqrt(C(bar))
UCLc = 16 + 3*4 = 16+12 = 28
LCLc = C(bar) + 3sqrt(C(bar))
LCLc = 16 - 3*4 = 16-12 = 4
An observed value of C=25 indiactes that process is under control as the observed c is between the lower control limit of 4 and the upper control limit of 28.Option (C) is correct.
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The centerline of a c control chart is determined to be 16.
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