Quality Control Charts --Xbar 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 column of data in the single column box. Enter n (the size of
the samples) in for "subgroup size".
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Enter the data into the box for Subgroups across rows. Then click o.k.
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To do a quality control chart that uses r instead
of s go to Stat, Quality Control Charts, X-bar-R.
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You should get the following screen.
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Enter the data into the box for Subgroups across rows. Then click o.k.
