Question: Check my work 3 Management is concerned about the operation of its 123XYZ work center. From past studies, it knows that X is 12.22, the

Check my work 3 Management is concerned about the

Check my work 3 Management is concerned about the operation of its 123XYZ work center. From past studies, it knows that X is 12.22, the LCL is 11.69 and the UCL is 12.75. The following data were collected for a 20 day period. (where each observation is the mean for the processing times for that day): 2 points 8 01:06:28 eBook Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Sample Mean 12.17 12.18 12.14 12.30 12.21 12.26 12.10 12.15 12.20 12.10 12.11 12.34 12.11 12.21 12.32 12.25 12.19 12.18 12.26 12.18 Print References Click here for the Excel Data File a. Select a correct x-bar chart for the given data. Graph 1 Graph 2 Graph 3 13 12.8 12.8 12.8 12.6 12.6 12.6 12.4 12.4 12.4 12.2 tot od 12.2 12.2 X-bar X-bar -X-bar 12 UCL 12 UCL 12 -UCL 11.8 LCL LCL LCL 11.8 11.8 Sample mean 11.6 Sample mean Sample mean 11.6 11.6 11.4 11.4 11.2 11.4 11 11.2 11.2 Mc Drou 3 of 5 Moyt Check my work 3 14 15 16 17 18 19 20 12.21 12.32 12.25 12.19 12.18 12.26 12.18 2 points X 01:06:21 Click here for the Excel Data File a. Select a correct x-bar chart for the given data. Graph 1 13 Graph 2 Graph 3 eBook 12.8 12.8 12.8 12.6 12.6 12.6 Print 12.4 12.4 12.4 12.2 Art 12.2 12.2 A A X-bar X-bar -X-bar References 12 UCL 12 UCL 12 UCL 11.8 LCL LCL LCL 11.8 11.8 Sample mean 11.6 Sample mean -Sample mean 11.6 11.6 11.4 11.4 11.4 11.2 11 11.2 11.2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 O Graph 1 O Graph 2 O Graph 3 b. What can you say about the process? Is it under control? O Yes O No Mc

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