Long description: qcfig2

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A control chart showing sample data points plotted against upper, ideal, and lower control limits.

Alt text: A control chart showing sample data points plotted against upper, ideal, and lower control limits.

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  • The chart displays a time series plot labeled "Sample Characteristic" on the vertical axis and "Sample Number" on the horizontal axis.
  • Three horizontal lines are drawn to represent control limits: an upper limit, an ideal value (center line), and a lower limit.
  • Data points fluctuate over the sample numbers, indicating the observed value for each sample relative to the established limits.
  • The general pattern of the plotted points suggests variability around the ideal value, with some points approaching or touching the control limits.

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