1. Given the following Equation show that for the estimator b1, E[b1] = B1
b1 = (sum(yi*xi1))/(sum((xi1)^2))
2. ei = yi-yhat = yi-bi*xi1 equal the residual
find var(ei)© BrainMass Inc. brainmass.com December 15, 2020, 11:12 pm ad1c9bdddf
The solution gives detailed steps on finding two statistic on regression: one is the expected value of slope and the other is the variance of residuals. Attached in Word.