PROBLEM Two land plots of equal size were planted to a species of bean (Vigna sp.). Plot A contains the control plants while Plot B contains plants treated heights of plants in both plots were measured and recorded as shown in the table below. Plot A Heights, cm Plot B Heights, cm 13.05 12.15 15.19 22.12 1207 15.1 15.01 17.1 1201 13.1 10.1 10.1 10.16 22 16 9.09 18.05 14.15 20.05 9.1 12.14 14.1 21.06 8.2 19.12 9.02 15.19 14.2 132 6.18 9.2 What is the computed test statistic? O -3.736 O -3.980 O 1.912 O 3.620