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Just a note

SSA =Σ( T(A)j2 ) G2
  • SSA is the Factor A sums of squares,
  • T(A)i is the sum of the observations at level i of factor A,
  • b is the number of levels of factor B and n is the number of replicates of each treatment combination,
  • G is the overall total and N is the total number of observations.