1. Auto pistons at Wemming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critical f

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1 Auto Pistons At Wemming Chung S Plant In Shanghai Are Produced In A Forging Process And The Diameter Is A Critical F 1 (71.62 KiB) Viewed 51 times

1. Auto pistons at Wemming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critical 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: Day Mean x Range R (mm) (mm) 1 154.9 4.2 2 153.2 4.4 3 151.6 4.3 4 153.5 4.8 5 156.6 4.7 mm (round your response to two a) [2 pts] What is the value of *? decimal places). mm (round your response to two decimal b) [2 pts] What is the value of R? places). c) [4 pts] What are the lower and upper control limits of the x-bar chart? mm (round your response to two Upper Control Limit (UCLX) = decimal places). mm (round your response to two • Lower Control Limit (LCLX) = decimal places). d) [4 pts] What are the lower and upper control limits of the R chart? · mm (round your response to two Upper Control Limit (UCLR) = decimal places). mm (round your response to two • Lower Control Limit (LCLR) = decimal places).