I have a multiple regression model (information derived from gretl):
$$Y=‐3,859921 \ln(P) + 1,707514\, (A) + 3,578656$$
$$\quad\quad\space(1,216387)\quad\quad\quad(1,259650)\quad\quad(0,323867)$$
the standard errors of the parameter estimates are underneath.
How to calculate the standard deviation of errors?
I really appreciate your answers!!!