table contains the data from five samples, each sample consisting of eight random observations. Click the icon to view the table with sample data. Click the icon to view the table of factors for calculating three-sigma limits for the x-chart and R-chart. a. What is your estimate of the process average? The estimate of the process average is (Enter your response rounded to two decimal places.) b. What is your estimate of the average range? The estimate of the average range is (Enter your response rounded to two decimal places.) c. Construct an R - and an x-chart for this process. Set up the R-chart by specifying the three-sigma control limits below. The UCLR equals and the LCLR equals . (Enter your responses rounded to two decimal places.) Set up the x-chart by specifying the three-sigma control limits below. The UCLxequals and the LCLxequals . (Enter your responses rounded to two decimal places) The process variability is statistical control and the process average is statistical control. More Info Factors for calculating three-sigma limits for the x-chart and R-chart. More Info