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 resultswere: Sample Sample Mean(in.) Range (in.)1 14.104 0.0332 14.100 0.0413 14.091 0.0344 14.108 0.0515 14.095 0.0316 14.099 0.036For the given data, the x double overbar = ____ inches (round your response to four decimal places).Based on the sampling done, the control limits for 3-sigma x overbar chart are:Upper Control Limit (UCL Subscript x overbar) = _____ inches.Lower Control Limit (LCL Subscript x overbar) = ______ inches
