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Chapter 27 Section 5.4: Inference for Regression

In the previous section you learned graphical and numerical techniques for describing the relationship between two quantitative variables, namely scatterplots and correlation coefficients. You also learned a method for fitting a linear model to predict the value of one quantitative variable from another. But you only described sample data in the previous section. In this section, you will again make the transition to inference: what can we conclude about a larger population or about the statistical significance of the association based on the sample results?