e) If the true diameter mean should be 155 mm and you want this as your center (nominal) line, what are the new UCL Subscript x overbarUCLx and LCL Subscript x overbarLCLx?

Upper Control Limit

(UCL Subscript x overbarUCLx )

=

nothing

mm (round your response to two decimal places).

Lower Control Limit

(LCL Subscript x overbarLCLx )

=

nothing

mm (round your response to two decimal places).

Auto pistons at Wenming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critice factor that must be controlled. From sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows: a) What is the value of x ? x=mm (round your response to two decimal places). b) What is the value of R ? R=mm (round your response to two decimal places). c) What are the ULx and LCLx using 3-sigma? Upper Control Limit (UCL)=mm (round your response to two decimal places). Lower Control Limit (LCLx)=mm (round your response to two decimal places). d) What are the UCLR and LCLR using 3-sigma? Upper Control Limit (UCLR)=mm (round your response to two decimal places)