Just need UCL- and LCL- for question e

Auto pistons at Wernrning Chung's plant in Shanghai are produced in a forging process, and the ciarneler is a critical factor that must be controlled. Fiorri sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows: Day 1 2 3 4 5 Mean x (mm) 154.9 151.2 151.6 157.5 156.6 Range R (mm) 4.0 4.6 4.1 5.2 4.5 a) What is the value of x? x = 154.36 mm (round your response to two decimal places). b) What is the value of R2 R = 4.48 rrim (round your response lo lo decimal places). c) What are the UCL, and L.Clusing 3-sigma? Upper Control Limit (UCL) = 155.74 mm (round your response to two decimal places) Lower Control Limit (LCL:) = 152.98 mm (round your response to two decimal places). d) What are the UCLR and LCL using 3-sigma? Upper Control Limit (UCL) = 7.97 mm (round your response to two decimal places) Lower Control Limit (LCLR) = 0.99 mm (round your response to two decimal places). e) If the true diameter mean should be 155 mm and you want this as your center (nominal) line, what are the new UCL and LCLE? Upper Control Limit (UCL;) = mm (round your response to two decimal places). =