Based on the sampling done, the control limits for 3 sigma X chart are

Find Upper Control limit x

Find lower control based limit x

The control limits for the 3 sigma R-Chart are:

Find the Upper control limit R

Find the lower control limit R

Based on the sampling done, the control limits for 3 -sigma x chart are (round all intermediate calculations to three decimal places before proceeding with further calculations): Upper Control Limit (UCL x ) = inches (round your response to three decimal places)