X-Bar Chart

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X-Bar Chart

The X-Bar Chart is the graphical chart produced from samples of a flagged parameter on the Spreadsheet Page Tab. The chart uses a rolling average of 2 through 6 sample points. The user can specify the sample points on the SPC Page Tab of the Preferences dialog box. The X-bar is the average of the data samples and the UCL and LCL are calculated using a formula based on the Range data.

X-Bar Chart

Important Information

The calculation numbers vary depending on the data in the Spreadsheet Page Tab. Using the filter function or the hide command allows the user to select the specific data runs to include on the SPC chart.


Visual Tutorial

Visual Tutorial: