An automatic lathe produces rolens for foller beanngs, and the process is monitored by statistical process control charta. The central ine of the chart for the sample means is set at B.00 and for the : mean range at 0.29mm. The process is in control; as establahed by samples of size 5 . The upper and lower specifications for the diametor of the rolers are (6.90+0.35) and (E 90 - 0.35 ) rmm, respectively. Click the icon to view the table of toctors for calculating three-sigma limits for the x-chart and R-chart. a. Calculate the control timts for the mean and range charts. The UCL HtF equals mm and the LCLR equats mm (Entor your responses rounded to two decimal laces.) More Info Factors for calculating three-sigma limits for the x-chart and R-chart