Consider the simple regression model Y =B + Bx +4 t = 1,2, ...,T where u, pu, + & with lpl < 1 and E(e) = 0, E(?) = o?, E(EE) = 0,t #s a. What are the consequences of having first order autoregressive autocorrelation? b. Derive the mean of autocorrelated u,'s. c. Derive the variance of autocorrelated u,'s. d. Derive the covariance of autocorrelated u, 's. e. Derive the correlation coefficient between u, and 1-1.