7. Control charts for X and s are maintained on the resist- ance in ohms of an electrical part. The subgroup size is 6. After 25 subgroups, SE = 2046.5 and 25 = 17.4. If the process is in statistical control, What are the control limits and central line? \f5. Control charts for X and R are kept on the weight in kilograms of a color pigment for a batch process. After 25 subgroups with a subgroup size of 4, 2)? = 52.08 kg (114.81b), ER = 11.82 kg (26.1 lb). Assuming the process is in a state of control, compute the X and R chart central line and control limits for the next production period