Refer to Table 56.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Twelve samples, each containing five parts, were taken from a process that produces steel rods at Emmanual Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: Sample Sample Range (in.) 1 2 3 4 5 6 Sample Mean Range (in.) (in.) 13.304 0.033 13.300 0.041 13.291 0.034 13.308 0.051 13.299 0.031 13.299 0.036 7 8 9 10 Sample Mean (in.) 13.303 13.307 13.297 13.301 13.301 13.306 0.041 0.034 0.027 0.029 0.039 0.047 11 12 For the given data, the x = 13.3013 inches (round your response to four decimal places). Based on the sampling done, the control limits for 3-sigma x chart are: Upper Control Limit (UCL;) = 13.3226 inches (round your response to four decimal places). Lower Control Limit (LCL;) = inches (round your response to four decimal places). Lower Range, Sample Size, n 2 3 4 5 6 7 8 9 Mean Factor, A2 1.880 1.023 0.729 0.577 0.483 0.419 0.373 0.337 0.308 0.266 Upper Range, D4 3.268 2.574 2.282 2.115 2.004 1.924 1.864 1.816 1.777 1.716 0 0 0 0 0 0.076 0.136 0.184 0.223 0.284 10 12