Also Include

Lower Control Limit(LCLx) =

b) The control limits for the 3-sigma R-chart are:

Upper Control Limit(UCLR) =

Lower Control Limit(LCLR)=

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 (UCLx)= inches (round your response to three decimal places)