In an experiment, the following observations for a certain characteristic were made for three different batches. Batch 1 2.1 2.58 1.66 2.22 2.28 2.87 2.2 2.34 Ans Batch 2 3.1 0.66 2.6 0.77 2.76 3.3 3 2.8 a. Compute and compare the means for the three different batches. Batch 3 2.77 2.87 2.53 2.13 1.95 2.65 2.44 2.12 C. b. Compute and compare the sample standard deviations for the three batches. Construct three side-by-side comparative boxplots (by hand) and comment on SOCS and any interesting features.