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(Solved): Question 6: a\Sigma x=12930g and \Sigma R=123g. Compute the control limits and estimate the standard ...



Question 6: a\Sigma x=12930g and \Sigma R=123g. Compute the control limits and estimate the standard deviation of the item weights. (Assume that base period observations indicate the process to be in control.) If the process average of the weights shifts to 433 g , how long will it take to detect the shift using the control limits in part (a)? b\Sigma x=500cm and \Sigma R=153.2cm. Determine the 3\sigma control limits. What is the probability that a shift of 2 cm in the process average would be detected on the first subgroup observed after the shift?


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