Two-way analysis of variance: Difference between revisions

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Model: spelling of "contigency" corrected to "contingency".
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To ensure [[identifiability]] of parameters, we can add the following "sum-to-zero" constraints:
 
<math>\sum_i \alpha_i = \sum_j \beta_j = \sum_i \gamma_{ij} =\sum_j \gamma_{ij} = 0</math>
 
==Hypothesis testing==