Linear regression is a statistical technique to model and investigate the relationship between two or more variables. Has application in the industry to investigate the relationship between production output and one or more factors (or) it depends, such as temperature, humidity, pressure, quantity of inputs, etc., based on This analysis can predict the behavior of a variable to be estimated.
If the engineer does determine how they relate to the known variables of a process, with the future behavior of another variable of interest, it may work positively and significantly to the decision making process. (Canada 2006)