Factors for calculating three-sigma limits for the x-chart and R-chart Factor for LCL for R-Chart (D3) Factor for UCL for R-Chart (D4) 0 0 0 Size of Sample Factor for UCL and LCL (n) for x-chart (A2) 2 1.880 3 1.023 4 0.729 5 0.577 6 0.483 7 0.419 8 0.373 9 0.337 10 0.308 0 0 3.267 2.575 2.282 2.115 2.004 1.924 1.864 1.816 1.777 0.076 0.136 0.184 0.223 At Isogen Pharmaceuticals, the filling process for its asthma inhaler is set to dispense 170 milliliters (ml) of steroid solution per container. The average range for a sample of 6 containers is 7 ml. Use the accompanying table to establish control limits for sample means and ranges for the filling process. Click the icon to view the table of factors for calculating three-sigma limits for the x-chart and R-chart. The UCLR equals ml and the LCLR equals ml. (Enter your responses rounded to two decimal places.) The UCL; equals ml and the LCL, equals ml. (Enter your responses rounded to two decimal places.)