MGT 6203 TOP Study Guide Questions and CORRECT Answers
Most common problems in fitting linear regression - 1. Non-linearity of the responsepredictor relationships 2. Correlation of error terms 3. Non-Constant variance of error terms 4. Outliers 5. High-leverage points 6. Collinearity How to check for linearity - 1. Check the scatterplot of Y vs. X variable. Is it linear? 2. OR residual plot vs. fitted plot (especially useful in multiple regression). We want to see no patterns in this plot
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