For parts a through d, determine if the combination of an X-bar chart and an S-chart suggest a problem. If there's a problem, did you find it in the X-bar chart, the S-chart, or both? a) 11- 10- UCL=9.71 Avg =7.16 eviation of Data UCL 4.48 Avg =2.61 LCL=4.62 b) 2 4 6 8 10 12 14 16 18 20 Group Choose the correct answer below. 2 4 6 8 10 12 14 16 18 20 Group OA. Since the S-chart is out of control, there is a problem. B. Since the X-bar chart is out of control, there is a problem. C. Since both charts are out of control, there is a problem. D. Since both charts are in control, there are no problems. LCL=0.74 UCL 70.44 20- UCL 18.72 15- Avg =59.80 10- Avg =10.91 70- 65- 60- 55- 50- LCL 49.17 10 12 14 16 18 20 Group 2 4 6 8 10 12 14 16 18 20 Choose the correct answer below. A. Since both charts are in control, there are no problems. B. Since both charts are out of control, there is a problem. C. Since the S-chart is out of control, there is a problem. D. Since the X-bar chart is out of control, there is a problem. Group LCL=3.09 c) 700- 650- Mean of Data UCL 651.18 600- 550- 500- 450- 1 2 3 4 5 6 7 8 9 10 Group Choose the correct answer below. Avg =563.39 LCL=475.60 Standard Deviation of Data 200- 175- 150- 125- UCL=192.42 Avg 129.16 100- 75- LCL=65.90 50- 1 2 3 4 5 6 7 8 9 10 Group A. Since the S-chart is out of control, there is a problem. B. Since the X-bar chart is out of control, there is a problem. C. Since both charts are out of control, there is a problem. D. Since both charts are in control, there are no problems. d) 850- 750-1 650- 550- 450- 400- UCL =825.99 350- UCL =330.77 300- Avg =675.08 250- 200- Avg =222.03 150- LCL=524.18 100- LCL 113.28 50- 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 Group Choose the correct answer below. A. Since both charts are out of control, there is a problem. B. Since both charts are in control, there are no problems. C. Since the S-chart is out of control, there is a problem. D. Since the X-bar chart is out of control, there is a problem. Group