5.1 DESIGN OF SPLIT-PLOT EXPERIMENT Given the following factorial experimental situation: Factor 1: Three types of insecticides (A1, A2, A3) Factor 2: Three rice varieties (B1, B2, B3) Replications: 3 (R1, R2, R3) Compare and contrast using diagrammatic methods for each experimental arrangement design below: a. Completely Randomized Design (CRD) b. Randomized Complete Block Design (RCBD) c. Split plot (CRD) d. Split plot (RCBD)