Question: An x - bar control chart was examined and no data points fell outside of the limits . Can this process be considered in control?

An x-bar control chart was examined and no data points fell outside of the limits. Can this process be considered in control? Yes. (A) Not yet, there could be a pattern to the points (B) Not yet, the R-chart must be checked. Both A and B Not yet, the number of samples must be known

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