Clear STON 3 [15] suppose that we wish to conduct an experiment to compare the effects of three types of fertilizers (Fi. F2, F;) on the yield of a certain variety of maize (kg/acre) grown under the natural conditions of SA. Three different one-acre plots (P), Pz, P3), with respect to maize growth environmental conditions, are available for the experiment in each of Limpopo, KZN and Mpumalanga provinces. In terms of suitability of the environmental conditions for maize growth, KZN has the best followed by Mpumalanga. Each fertilizer will be applied to an acre plot according to the standard Latin square design with Province as the column blocking factor and Plot as the row blocking factor. (a) Complete the layout of the standard latin square design below. (9) Province Plot | Limpopo KZN Mpumalanga F1 F2 F3 P2 P2 (b) Consider the latin square design above. What are the degrees of freedom for each source of variation in the table below? Source df Fertilizer Province Plot Error Total (6)