Six samples of subgroup size 6 (n=6) were collected. Determine the upper control limit (UCL) and lower control limit (LCL) for an X-Bar chart if the mean of the sample Averages is 4.7 and mean of the sample Ranges is 0.35.
Determine the upper control limit (UCL) and lower control limit (LCL) for an X-Bar chart.
- UCL = 4.86905, LCL = 4.53095
- UCL = 4.90195, LCL = 4.49805
- UCL = 4.72250, LCL = 4.14350
- UCL = 5.05805, LCL = 4.34195