Cumulative Sum (CUSUM) Calculator | Upper, Lower Control Limit
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Cusum calculator helps to detect the quality control related problems. The cumulative sum is the sum of difference between the values and the average.

Cumulative Sum (CUSUM) Calculation

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Formula:

Cumulative Sum Where, St = Avaerage Run Length, μ = Target Mean, σ = Standard Deviation, k = Reference value, Ci+ = Upper Control Limit (UCL) Ci- = Lower Control Limit (LCL)

CUSUM is a statistical method used for detecting the quality changes and to determine the corrective action on time. Cumulative Sum calculation is made easier here.

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