Question: 2. (15 pts.) Assuming it is needed to check a process for whether In-Control or Out-of-Control by developing z and R control charts. After taking

2. (15 pts.) Assuming it is needed to check a

2. (15 pts.) Assuming it is needed to check a process for whether In-Control or Out-of-Control by developing z and R control charts. After taking 20 samples with a size of 4 each from the process, below calculations are received: 20 Xi = 10.275, R; = 1.012 20 i=1 a) (10 pts.) Calculate the control limits. b) (5 pts.) Estimate the process mean and standard deviation

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