Publication date: 07/08/2024
Interpret a Legacy One-Sided CUSUM Chart
Use a one-sided CUSUM chart to identify data approaching or exceeding the side of interest.
Figure 14.10 Example of a One-Sided CUSUM ChartÂ
The decision interval or horizontal line is set at the H value that you entered in the launch window. In this example, it is 0.25. Any values exceeding the decision interval of 0.25 indicate a shift or out-of-control condition. In this example, observation 4 appears to be where a shift occurred. Also note that no V-mask appears for one-sided CUSUM charts.
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