b) find the lower control limit

c) based on the x chart is one or more samples beyon the control limits?

d)for the given data the R_ inches

Problem 6s.11ac Question Help Heter to lable 551-tactors for Computing Control Chart Limits 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 Mean Range in.) in.) 13 400 0.044 13 400 0 051 13391 0 042 13.406 0037 13 397 0048 13.399 0.053 Sample Sample Mean (in.) Range (in.) 13.403 0021 13.407 0.058 13 393 0.019 13 403 0.038 13.401 0054 1300 01051 For the given data, the x 13.401 inches (round your response to four decimal plada) Based on the sampling done, the controllimits for 3-max chart are Upper Control Limit (UCL) - inches (round your response to four decimal places)