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Analysis Of Variance (ANOVA) in short
sleeved English!
Since
I have started publishing articles about Statistical Analysis on the
Internet, I have received a lot of questions about the Analysis Of
Variance. There seem to be confusion between Regression Analysis and
ANOVA and some readers fail to grasp the purpose of ANOVA because of
the technical lingo that generally mires articles pertaining to that
subject.
The purpose of this article is to present the Analysis Of Variance
under less confusing auspices, in plain English. By Issa Bass
Analysis Of Variance (ANOVA)
ANOVA is a basic step in the Design Of Experiment (DOE), which is a powerful statistical tool aimed at statistically quantifying interactions between independent variables through their methodical modifications to determine their impact on the predicted variables. By Issa Bass
Analysis Of Means (ANOM)
The Analysis of
Variance (ANOVA) is a good tool to determine if there is a
difference between several sample means but it does not determine
where the difference comes from, what samples are so disparate that
the null hypothesis has to be rejected.
The Analysis Of Means is a lot simpler and easier to conduct
than ANOVA and it provides an easy to interpret visual
presentation of the results.
By
Issa Bass
Design Of Experiment - A Tutorial For
Those Who Do not Speak Mathematics Or Statistics And A Refresher For
The Rest Of Us
The best operations decisions are the result of a strategic thinking
that consists in conducting several experiments, combining
relevant factors in different ways to determine which combination is
the best. That process is known in statistics as Design Of
Experiment (DoE). By Issa Bass
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