The effectiveness of the pesticides produced by the selected companies have been compared by the types of machines used during the production (machine A, B and C) and the total amount of the chemical added in the solutions (50ml, 100ml and 150ml). The life span (in minutes) of the insects were recorded for each machine type and solution amount used. The result of ANOVA is summarised as in Figure 2 at 2% signicance level. ANOVA Source of Variation 55 df MS F P-value F crit Sample 12.6667 2 6.3333 2.3425 4.9001 Columns 62.8889 2 31.4444 11.6301 4.9001 Interaction 20.4444 4 5.1111 1.8904 R Within P 18 Q Total 144.6667 26 Figure 2 Based on Figure 2, i) identify the number of replicates and treatments? State all the treatments involved in this study. [4 Marks] ii) iii) iv) nd the value of P, Q and R. [4 Marks] is there any interaction effect between the types of machines used and the total amount of chemical added in the solutions? [5 Marks] based on your answer in iii), do we need to test for the marginal effect? Give a reason. [2 Marks]