Question: 1. Comment briefly on the meaning of each of the following.
(a) Estimated coefficient.
(b) Standard error.
(c) t-statistic.
(d) R-squared.
(e) Sum of squared residuals.
(f) Standard error of the regression.
(g) Best linear unbiased estimator.
2. Let , be the residuals in the least squares fit of Y, against XI (i = 1, 2, ... , n). Derive the following results:
