Cusum Chart in Excel

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Cusum Charts

Cusum charts (Cumulative Sum Charts) evaluate stability of processes using variable data--time, cost, length, weight.

The Cusum chart can detect process shifts more rapidly than the XmR or XbarR. If a trend develops, it's evidence that the process has shifted.

Here is a sample of a cusum chart created using the QI Macros SPC Software for Excel:

Cusum charts are just one of the tools included in the QI Macros for Excel SPC Software for Excel.

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The QI Macros for Excel $139, is an inexpensive easy to use set of Excel add-ins for statistical process control and Lean Six Sigma. It draws line, pie, bar, pareto, box whisker, histogram (Cp, Cpk), scatter and control charts (with stability analysis).

It contains over 70 fill in the blank templates such as the Ishikawa diagram, QFD, DOE, FMEA, PPAP, and Gage R&R for MSA. Performs ANOVA, t-test, F-test, and regression analysis.

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