Finding Expected Value of Slope and Variance of Residuals
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1. Given the following Equation show that for the estimator b1, E[b1] = B1
yi=B1*Xi1+(epsilon)i
b1 = (sum(yi*xi1))/(sum((xi1)^2))
2. ei = yi-yhat = yi-bi*xi1 equal the residual
find var(ei)
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© BrainMass Inc. brainmass.com December 24, 2021, 11:38 pm ad1c9bdddf>https://brainmass.com/statistics/ordinary-least-squares/finding-expected-value-slope-variance-residuals-588144