Abstract
We will use the file labeled boltsize.txt to demonstrate the XBAR Chart procedure. Load the file and select the option Statistics/Statistical Process Control/Control Charts/XBAR Chart from the menu. The file contains two variables, lot number and bolt length. These values have been entered in the specification form which is shown below. Notice that the form also provides the option to enter and use a specific “target” value for the process as well as specification levels which may have been provided as guidelines for determining whether or not the process was in control for a given sample (Fig. 12.1).
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Miller, W. (2013). Statistical Process Control. In: OpenStat Reference Manual. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5740-4_12
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DOI: https://doi.org/10.1007/978-1-4614-5740-4_12
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