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= = Consider the multiple regression model y = Xißi +€. We then decided to add more predictors in the model so it is now
Posted: Wed May 11, 2022 8:17 pm
by answerhappygod
- Consider The Multiple Regression Model Y Xissi We Then Decided To Add More Predictors In The Model So It Is Now 1 (56.97 KiB) Viewed 24 times
= = Consider the multiple regression model y = Xißi +€. We then decided to add more predictors in the model so it is now expressed as y = Xißı+X232 +€, with E(e) = 0 and var(e) = oʻI. Show that cov(1, 2.1) = 0. Here, ê, is the estimate of B1 from the regression of y on X1 (short regression) and 22.1 is the estimator of B2 from the regression of y on Xı and X2 (long regression).