The way we are going to do it looks like this:
  1. We look at the distribution of the scores on the Saber 11 test;
  2. We shift it to the right in order to increase its mean;
  3. We look at how the other variables have changed.
Figure \ref{625450} shows a comparison of the distribution of the variable PUNTAJE found in the data - that we called Old - and the new distribution. For the Old distribution, the mean is