You are thinking about a regression model Y = X + , with the usual assumptions. A

Question:

You are thinking about a regression model Y = Xβ + , with the usual assumptions. A friend suggests adding a column Z to the design matrix.

If you do it, the bigger design matrix still has full rank. What are the arguments for putting Z into the equation? Against putting it in?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: