Answer Happy

Temperature is used to measure the output of a production process. When the process is in control, the mean of the process is u = 128.5 and the standard deviation is o = 0.3. (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 = UCL UCL Construct the x chart for this process. 129.50+ 129.25 129.00 128.75 128.50 128.25 128.00 127.75 UCL UCL Sample Mean x Sample Mean 129.50+ 129.25 129.00 128.75 128.50 128.25 128.00 127.75 Sample Mean x 129.50 129.25 129.00 128.75 128.50 128.25 128.00 127.75 Sample Mean 129.50 129.25 129.00 128.75 128.50 128.25 128.00 127.75 LCL LCL LCL LCL 2 4 6 8 10 2 4 6 8 10 2 4 6 8 10 2 4 6 8 10 о Sample Number Sample Number Sample Number 0 Sample Number (b) Consider a sample providing the following data. 128.8 128.2 129.1 128.7 128.4 129.2 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. O No, the process is out of control for the sample. (c) Consider a sample providing the following data. 129.3 128.7 128.6 129.2 129.5 129.0 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. O No, the process is out of control for the sample.