An experiment with three replications was conducted to test the concentration of three heavy metals in plant tissues of one plant species collected from three dumpsites. The data on heavy metal concentration are given below: Dumpsite Kang'oki Kisumu Nanyuki (a) (b) Block 1 2 3 12 2 3 1 2 3 Pb 6.6 6.5 6.7 6.8 6.9 6.9 7.0 7.1 7.1 Cd 6.5 6.5 6.6 7.0 7.0 6.9 7.3 7.3 7.4 Ni 7.4 7.4 7.2 7.4 7.5 7.5 7.8 7.9 8.0 Giving a statistical model [3 marks] Analyze the data to test an appropriate hypothesis using a factorial design. TSS = 4.68 and SSAB 0.13. Take [14 marks]