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Industrial Statistics with Minitab by Xavier Tort-Martorell Llabres, Lluis Marco Almagro, Pere Grima Cintas

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18.5 Graphs of Moving Ranges

Consider again the file CLORINE.MTW and draw the graph of the moving ranges of the pH values on Friday going to the following.

Stat > Control Charts > Variables Charts for Individuals > Moving Range

nc18uf015.eps

The options are basically the same as in the case of individual observations.

nc18uf016.eps

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