You and a co-worker have been asked to analyze a boring process used to increase the inside diameter of a pipe flange. two lathes are used in the shop to perform the boring operation, and the two of you take 15 samples of four individual measurements of the bore surface roughness from each machine; the results in microinches are given in the accompanying tables. use whatever statistical methods you deem appropriate to compare the output of the two machines using the data given. be sure to include graphical representations of the data.