Refer to Table 86.1 - Factors for Computing Control Chan Limits (3 sigma) for this problem. Twelve samples, each containing ve 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: El Sample $31.25., Range (in.) Sample Sample Mean (in.) Range (in.) 1 14.400 0.044 7 14.401 0.021 2 14.402 0.051 8 14.405 0.058 3 14.389 0.042 9 14.393 0.039 4 14.406 0.037 10 14.403 0.038 5 14.30? 0.048 11 14.401 0.054 6 14.401 0.053 12 14.404 0.061 For the given data, the )7 = 14.4002 inches (round your response to four decimal places). Based on the sampling done, the control limits for 3-sigma 3r chart are: Upper Control Limit (UCL;) = inches (round your response to four decimal places)