2. The data shown in Table 2 are the deviations from nominal diameter for holes drilled in a carbon fiber composite material used in aerospace manufacturing. The values reported are deviations from nominal in ten-thousandths of an inch. (a) Set up X and S charts on the process. Is the process in statistical control? (6) Estimate the process standard deviation. -20 Table 2 Sample Number X X2 X3 X4 1 -30 50 -20 10 2 RN 50 RN 3 -50 10 20 30 4 -10 -10 30 -20 5 20 RN 50 20 6 0 0 40 RN 7 0 0 20 -20 8 70 -30 RN -10 9 0 0 20 RN 10 10 RN 30 10 11 40 0 20 0 12 30 20 RN 10 13 30 -30 0 10 14 30 RN 50 RN 15 RN -10 50 40 16 0 0 RN -10 17 20 30 30 18 10 -20 50 30 19 50 -10 40 20 20 50 0 0 RN RN: Create random numbers between -60 and 60 X 30 30 20 50 10 20 -10 0 10 50 20 40 10 -30 0 0 -20 10 0 RN 20