... 1)}Total SST = 33 33( xijk - x)2n - 11The sum for SST is over all levels for i, j , k and m, i.e., over all n observations.2The F-ratios for the factors and two factor interactions are for fixed ... SSBC (J - 1)(K - 1) MSBC = SSBC/{(J - 1)(K - 1)} MSBC/MSEABC Interaction SSABC (I - 1)(J - 1)(K - 1) MSABC = SSABC/{(I - 1)(J - 1)(K - 1)} MSABC/MSEError SSE IJK(m - 1) MSE = SSE/{IJK(m - 1)}Total ... $2NT + , (3. 24)was fitted to the data in Table 3. 3, where CH denotes chlorophyll-a,PH denotes phosphorus, and NT denotes nitrogen. This gaveCH = -9 .38 6 + 0 .33 3PH + 1.200NT, (3. 25)with an...