An X bar chart includes the following data: The mean of data ranges from 90 to 105 on the Y axis. The group ranges from 2 to 20 on the x axis. The upper control limit is 105.04. The average is 100.09. The lower control limit is 95.14. The mean falls below the lower control limit at approximately 17 on the X axis. It remains below the lower control limit through the end of the graph.

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