For parts a through d determine if the combination of an Xba

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) UCL =9.71 UCL = 4.48 Avg #7.16 Avg #2.61 LCL #0.74 LCL 462 4 6 8 10 12 14 16 18 20 2 10 12 14 16 18 20 Group 2 4 Group Choo ( A. Since the S-chart is out of control, there is a problem 0 B. Since the X-bar chart is out of control, there is a problem se the correct answer below C. Since both charts are out of control, there is a problem ( D. Since both charts are in control, there are no problems b) UCL 70.44 UCL= 18.72 6 Avg =59.80 Avg 10.91 LCL = 3.09 LCL 49.17 2 4 6 8 10 12 14 16 18 20 Group 2 4 6 8 10 12 14 16 18 20 Group 2 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 0 D. Since the X-bar chart is out of control, there is a problem

Solution

A. Since the S-chart is out of control, there is a problem. Hence Option (A).

B. Since both the charts are in control, there is no problem. Hence Option (A).

C. Since the X-bar chart is out of control, there is a problem. Hence Option (B).

D. Since both the charts are out of control, there is a problem. Hence Option (A).