unbalanced data in ANOVA
Is this possible?
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The student wrote:
Is this possible? Depends on how hard you want to work. The ATP "Anova: Single Factor" tool handles unequal numbers just fine. With multiple factors, you will either need a 3rd party add-in or will have to manually implement the formulas. If you are trying to implement calculations for a very specific design that will be used repeatedly by a number of different users who all have and are comfortable using Excel, then it might be worth manually implementing. Otherwise, a far more flexible approach would be to obtain and learn a full-blown statistics package. R is an open source implementation of the S language that may be freely downloaded from http://www.r-project.org/ Jerry |
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