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Lecture 14 Simple Linear Regression Ordinary Least Squares ...
www2.stat.duke.eduConsider the following simple linear regression model Y i = + X i + "i where, for each unit i, Y i is the dependent variable (response). X i is the independent variable (predictor). " ... Properties of OLS Given the estimates ^ and ^, we can de ne (1) the estimated predicted value Y^ i and (2) the estimated residual ^" i. Y^ i = ^ + X^ i "^ i ...