The average of allsubgroups becomes the centerline for the lower plotting area. Average of Ranges Example Step 7 - Calculate the upper control limit (UCL) and lower control limit (LCL)for the averages of the subgroups. At this point, your chart will look like aRun Chart. Now, however, the uniqueness of the Control Chart becomes evidentas you calculate the control limits.
Ford Motor Company recommends that the Crown Vic limit its towing to a trailer with a gross vehicle weight of 1500 lbs or less with a tongue weight not to exceed 150 lbs. See HERE.
Pay all fees for towing and storage: The TOW CHARGE: The maximum charge for a private property tow is: $250 for a car weighing up to 10,000 lbs; $350 for a car weighing more than 10,000 but less than 25,000 lbs; $450 per unit for unit for cars weighing more than 25,000 lbs with a $900 total maximum; These are the maximum rates statewide.