The results of a two-factor research study are organized in a matrix with the two levels of factor A for the rows and the three
levels of factor B for the columns. The mean (M) and sum of squares (SS) are computed for each cell in the matrix. What value is obtained by adding all six of the SS values
SSbetween treatments or Sum of square between treatments is used to measure and compare the mean differences between treatments from which the variance will be computed.
