Basic Analysis • Oneway Analysis • Analysis of Means Methods • Analysis of Means Charts
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Analysis of Means Charts
Each Analysis of Means Methods option adds a chart to the report window that shows the following:
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an upper decision limit (UDL)
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a lower decision limit (LDL)
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a horizontal (center) line that falls between the decision limits and is positioned as follows:
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ANOM: the overall mean
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ANOM with Transformed Ranks: the overall mean of the transformed ranks
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ANOM for Variances: the root mean square error (or MSE when in variance scale)
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ANOM for Variances with Levene (ADM): the overall absolute deviation from the mean
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ANOM for Ranges: the mean of the group ranges
If a group’s plotted statistic falls outside of the decision limits, then the test indicates that there is a statistical difference between that group’s statistic and the overall average of the statistic for all the groups.

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Help created on 9/19/2017