Based on the sampling$$ done, the control limits for $3-$sigma x overbar chart are $($round all intermediate calculations to three decimal places before proceeding with further $$calculations$)$:

Part $2$

Upper Control Limit $($UCL Subscript x overbar$)=$

$$

enter your response here inches $($round your response to three decimal$$ places$).$

Part $3$

Lower Control Limit $($LCL Subscript x overbar$)=$

$$

enter your response here inches $($round your response to three decimal$$ places$).$

Part $4$

Based on the x overbar$-$chart, the wire cutting process has been

$$

IN CONTROL

OUT OF CONTROL

$.$