Discuss the below:
Questions:
What happened at different times during this shift?
Why did management change the UCL in the R chart just after 10 a.m.?
Why did it change the LCL in the R chart after 2 p.m.?
Why did it change the control limits on x-bar chart at 3 p.m.?
![1347_ucl.jpg](https://secure.tutorsglobe.com/CMSImages/1347_ucl.jpg)