Recent content by ewilliams00

  1. E

    How could I demonstrate

    I didn't expect anybody doing the exercise for me. I just want to learn by getting some leash It would be really helpful if you could detail the previous steps until you get (1)
  2. E

    How could I demonstrate

    Thank you, but sorry it is not so obvious for me So we have From where are appearing X' and X?
  3. E

    How could I demonstrate

    Sorry, I edited
  4. E

    How could I demonstrate

    Supposing that we have a regression model that fits the conditions of normal, homoscedasticity and independent residuals, I would like to demonstrate that the variance of the estimators is: Where is the Coefficient of Determination and How should I start this?