Cumulative Sum (CUSUM) Calculator | Upper, Lower Control Limit

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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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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