Correction factor (CF) = (Grand total)2 / n
 = (98.7)2 / 16
 = 608.856

 where n = number of observations

Total sum of squares (SStot):

 SStot = E(each observation)2 CF
 = [(4.3)2 + (4.5)2 +...+ (7.0)2 + (8.8)2] CF
 = 639.45 608.856
 = 30.594

Sum of squares for blocks:

 SSB = [Z(each block)2 / t] CF
 = {[(47.3)2 + (51.4)2] / 8} CF
 = 609.906 608.856
 = 1.05

 where t = number of treatments

 The sum of squares for treatments (SST) is calculated in a
different manner because the factorial effects have
already been calculated (Table III-4).

Sum of squares for treatments (7 treatment combinations):

 SST = E(each factorial effect)2 / n
 = [(11.1)2 + (8.9)2
 + (15.5)2 +...+ (0.1)2 + (1.3)2] / 16
 = 28.46

and SSE = SStot (SST + SSB)
 = 30.594 (28.46 + 1.05)
 = 1.084