Question: 5 Process time at a workstation is monitored using sample mean and range control charts. Six samples of n-8 observations have been obtained and the

5 Process time at a workstation is monitored
5 Process time at a workstation is monitored using sample mean and range control charts. Six samples of n-8 observations have been obtained and the sample means and ranges computed in minutes Sample Mean 3.25 ). 1.14 1.28 3.3 3:20 Rare 0.55 0.53 0.42 0.46 ..55 0:51 . Using the factors in Table 103. determine the upper and lower limits for sample mean and range control charts. (Round the Intermediate calculations to 2 decimal places. Round the finalmean answers to 2 decimal places. Round the final renge answers to 3 decimal places UCE CE b. is the process in control Yes NO

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