Problem 2: In a study of four electroplating processes, an engineer obtained twelve homogeneous wire rods, each 54 inch in diameter, from each of five different suppliers (60 rods total). The rods were assigned to the electroplating processes as in a GRCBD: those from each supplier were divided evenly and assigned to the four different electroplating processes. After all 60 rods were electroplated, the average thickness (in units of 100m) of each rod was measured, producing the data in the table below. (Each cell of the table lists a single thickness measurement.) Supplier Process 1 2 3 4 5 18.6 19.7 19.2 18.3 19.1 A 19.2 19.2 19.4 18 19.6 19 18.9 19.4 18.4 19.7 Part A: Create the Block-Treatment Interaction Plot. Based on visual assessment, does interaction appear as a strong patteln in these data? Part B: Create the Treatment Effect Plot (Main Effect plot). This is a plot of the treatment means versus the treatment. Compare this plot with that of Part A. Does the pattern exhibited here provide a meaningful description of the overall pattern of treatment effects