Quality Control Charts --S Chart
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To do this, enter your data in one column. Enter all
of the items for sample one first, and then for sample 2, etc.
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If you want to do a Xbar Chart with s as an approximation
of sigma. Use Stat, Contol Charts, Xbar-S. The following image should appear.
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Enter the data into the box for Subgroups across rows. Then click o.k.
