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Statistics Tutor - Vol 7 - ANOVA
13 - ANOVA Basics - The Grand Mean
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In this lesson, we will continue the study of Analysis of Variance (ANOVA) by discussing each part of the calculation separately. Here we discuss the grand mean, which relates the mean of all of the sample means in the data sets.
This will then tie into the sum of squares among treatments and sum of squares of errors in the final ANOVA calculation.