Regression analysis is a technique which uses a line on a scatter plot to show a relationship graphically or express it mathematically. Once a relationship is expressed in this way, you can use the relationship to make predictions. You can use regression analysis to help express the degree of confidence you have in a prediction. You may also want to know where the line should be placed if you are interested in having a fundamental understanding of the nature of the relationship between the variables that are being studied.
Correlation and regression are closely connected. As a manager, how much weight should you give to a correlation? Does a strong positive linear relationship, as shown by a regression line, imply causality? Provide rationale for your response. Relate this to your decision-making process.