Question

Upper limit and lower limit in comtrol chart equations

Answer 1

HERE IS YOUR ANSWER. . .

.

.

In general, the chart contains a center line that represents the mean value for the in-control process. Two other horizontal lines, called the upper control limit (UCL) and the lower control limit (LCL), are also shown on the chart. ... The control limits as pictured in the graph might be 0.001 probability limits.

.