Figure 1 below depicts an electric dipole. The positive and negative charges in the dipole are arrayed along the $y$ axis symmetrically about the origin. Two field points are shown. One field point, $P_\uparrow$, lies along the dipole axis a distance $z$ above the dipole center. The other field point, $P_\downarrow$, lies along the dipole axis a distance $z$ below the dipole center.
Which of the following statements correctly describes the relations between the magnitude and direction of the electric fields due to the dipole at points $P_\uparrow$ and $P_\downarrow$?