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Temperature is used to measure the output of a production process. When the process is in control, the mean of the process is , =

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Temperature is used to measure the output of a production process. When the process is in control, the mean of the process is , = 126.5 and the standard deviation is a = 0.5. (a) Compute the upper and lower control limits if samples of size 6 are to be used. (Round your answers to two decimal places.) UCL = LCL - Construct the x chart for this process. 127.50 127.50 127.50 UCL 127.50+ 127.25 127.25 127.25 127.25 UCL 127.00 UCL 127.00 UC 127.00 127.00 Mean 126.75 126.75 126.75- Meat 126.75 126.50 126.50 126.50 - 126.25 126.50 LCL 9. 126.25 126.25 126.25 126.00 126.00 126,00 125.75 LCL 126.00 125.75 125.75 125.75 LCL LCL 2 6 8 10 2 10 2 10 2 6 8 10 Sample Number Sample Number Sample Number OO Sample Number (b) Consider a sample providing the following data. 126.8 126.2 127.1 126.7 126.4 127.2 Compute the mean for this sample. (Round your answer to two decimal places.) X = Is the process in control for this sample? Yes, the process is in control for the sample. No, the process is out of control for the sample. (c) Consider a sample providing the following data. 127.3 126.7 126.6 127.2 127.5 129.0 Compute the mean for this sample. (Round your answer to two decimal places.) X = Is the process in control for this sample? Yes, the process is in control for the sample. No, the process is out of control for the sample. Submit

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