Question: Please answer all parts - . s6.11 Twelve samples, each containing five parts, were taken from a process that produces steel rods. The length of

Please answer all parts - . s6.11 Twelve samples,

Please answer all parts

- . s6.11 Twelve samples, each containing five parts, were taken from a process that produces steel rods. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: a) Determine the upper and lower control limits and the overall means for x-charts and R-charts. b) Draw the charts and plot the values of the sample means and ranges. c) Do the data indicate a process that is in control? d) Why or why not

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