size before you start computations. Sample Observations X-bar Sample No. 4 5 3 1 2 10.07 0.61 10.4 9.79 10.04 10.02 10.13 10.07 10.04 10.41 1.65 10.5 10.18 10.5 10.2 9.85 10.14 11.5 2.97 12.01 9.04 10.3 10.15 10.05 10.1 10.35 10.29 10.03 1.00 9.5 10.3 10.01 9.87 10.5 10.05 9.99 4 11 10.09 10.4 10.12 10.47 10.07 10.30 1.06 9.94 10.40 0.91 9.99 10.9 10.5 10.1 10.3 10.14 10.9 10.6 10.12 1.05 10.15 9.55 10.05 10.03 9.87 10.56 10.21 9.6 1.20 10.2 10.2 10.09 10.8 10.07 10.5 8 11.99 10.08 10.11 10.14 10.5 10.04 8.99 10.26 3.00 9. 10 10.1 10.75 10.04 10.13 10.08 10.03 10.47 10.23 0.72 Required: (a) Compute the upper and lower control limits for the R-chart. Is there any reason to be concerned about this process? You need not plot the data. (10) (b) Compute the UCL/LCL values for x-bar chart. Then, just by observation, state if the process appears to be in control and state why you believe so. (15)