Question: Problem 6s.11ac Refer to Table 56.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Twelve samples, each containing five parts, were

Problem 6s.11ac Refer to Table 56.1 - Factors for

Problem 6s.11ac 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 Sample Mean (in.) Range (in.) 1 2 Sample Mean (in.) 13.404 13.400 13.393 13.408 13.395 13.399 Range (in.) 0.044 0.051 0.042 0.037 0.048 0.053 3 4 5 6 7 8 9 10 11 12 13.403 13.405 13.395 13.403 13.401 13.408 0.021 0.058 0.039 0.038 0.054 0.061 For the given data, the x = 13.4012 inches (round your response to four decimal places). Based on the sampling done, the control limits for 3-sigmax chart are: Upper Control Limit (UCL;) - inches (round your response to four decimal places)

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