CUSUM Control Charts
The CUSUM Control Chart platform also provides information about average run length (ARL). The average run length is the average number of samples or observations that can be expected to occur before an out-of-control signal occurs. You can use the average run length to assess the performance of a CUSUM chart, given specific parameters and assuming constant variance.
Figure 5.1 CUSUM Control Chart

Help created on 1/2/2019