Statistical Evaluations of Regression Analysis on Measurement Correlation, TAPPICon24

Measurements from online sensors such as weight or moisture readings from a quality control system (QCS) scanner are often correlated with offline measurements from laboratory instruments. Offline laboratory measurements are usually served as the standard references. The correlation results are then used to make online measurements match with the offline measurements. Questions about the statistical significance of a correlation are often encountered during the regression analysis. To answer these questions, the present paper provides a set of guidelines for users to perform statistical evaluations. A few data sets from real processes are used to illustrate the applications of these guidelines. The goal is to help users obtain statistically significant measurement correlation.

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