ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards ISO 9001:2015 Correlation Matrix & Change Summary xls Spreadsheet Templates and ToolsĪutomated and Manual Measurement System Comparison (Correlation)Ĭorrelation between ASTM & China's GB (Guobiao) / YY Standards MS Excel to study Correlation between Humidity & Differential PressureĮxcel. Statistical Analysis Tools, Techniques and SPC Reliability Analysis - Predictions, Testing and Standardsīest Practices in CMM Correlation Studies Significance of regression, correlation coefficient, hypothesesi, confidence interval How should I analyze measurement correlation between me and customer? Gage R&R (GR&R) and MSA (Measurement Systems Analysis) General Measurement Device and Calibration Topics Surface Finish Correlation between Ra, Rz and Tp (bearing surface ratio) thsi graphical analysis will tell you far more than just calculating the numbers. but the truly important analysis is to first plot your data on a square scatter diagram (X and Y axis have same scales) and a 45 degree line (1:1 line). ICC is always appropriate and CV will add valeu if you have this interaction occuring. Remember that this isn't an either / or situation. and actually it's a type of interaction between the measurement sytem and the thing being measured. I deal with a lot of biologicals and blood and we see this for certain characteristics - it's a natural process. some things can be measured with great repeatabliity at when the thing is small but a lot of variability when the thing is large. HOWEVER, it's important to undersatnd the usefullness of the CV: IF you have a measurement system that is sensitive to the 'amount' of what you are measuring then the CV may add value to your analysis. As Miner says the ICC is the best statistic for measurement repeatabliity and reproducibility.

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