Question: Problem 6s.7 Question Help Refer to Table S6 1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Auto pistons at Wemming

Problem 6s.7 Question Help Refer to Table S6 1 -
Problem 6s.7 Question Help Refer to Table S6 1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. 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: Mean x Range R Day (mm) (mm) 1 156.9 42 2 155.2 4.8 3 153.6 4.3 4 155.5 4.8 5 156.6 4.7 a) What is the value of - mm (round your response to two decimal places)

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