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Setup
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Data
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Results
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Coach
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Report
Did Your Process Improve?
Compare measurements before and after a process change to find out if it made a real difference.
Give your analysis a descriptive name so you can find it later.
Add spec limits to compare capability (Cpk) before and after the change.
Notes are included in the PDF report and help QC-Coach give better insights.
Before/After Analysis
Paste your Before and After measurements to find out if your process change made a real difference. The tool uses Welch's t-test to compare the two groups and tells you whether the improvement is statistically significant.