At Cuick Car Wash, the wash process is advertised to take less than 7 minutes. Consequently, management has set a tarpot average of 390 seconds for the wanh procoss Suppose the average range for a sample of 9 cars is 12 seconds. Use the accompanying table to establith control limits for sample means and ranges for the car wash prosess: Click the leon to view the table of tactors for calculating three-sigrs imits for the Xi-chart and R-chart. The UCLR equals seconds and the LCLR equats seconds. (Enter your responses rounded to hro decimal places)