Question: In an existing process, we have found that the lower and upper controllimits for X-bar chart are 8.09 and 8.59 respectively. Whereas, the lower and

In an existing process, we have found that the
In an existing process, we have found that the lower and upper controllimits for X-bar chart are 8.09 and 8.59 respectively. Whereas, the lower and upper control limits for R-chart are 0 to 1.25 respectively. The following measurements for one sample are taken:7.91, 8.55, 8.13, and 12.50. Using X bar chart only for this particular sample, what we can conclude about the process mean O a. Insufficient information to conclude Ob. Process mean is out-of-control. Oc Overall process is in control Od Process mean is in control

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