a)Was there a significant reduction in the amount of calcium due to the burning? Use 5% level of significance

bush encroachment. An MSc student is interested in investigating the effects of burning on soil calcium levels. Soils samples were taken from 1 1 plots of equal area prior to burn in late April 2022. In September 2022, calcium levels were measured from the same plots. The values of calcium levels before and after burning are shown in the table below Table: Calcium levels before and after burning Plot 2 3 4 5 6 8 9 10 11 Before burning 50 45 81 63 83 77 73 23 44 36 54 After burning 29 31 58 41 60 33 49 11 17 10 12 (a) Was there a significant reduction in the amounts of calcium due to the burning? Use 5% level of significance