Princeton: Two--one to mix the martinis and one to call the electrician
Brown: Eleven--one to change the light bulb and ten to share the experience
Dartmouth: None--Hanover doesn't have electricity
Cornell: Two--One to change the light bulb and one to crack under the pressure
Penn: Only one, but he gets six credits for it
Columbia: Seventy-six-- one to change the light bulb, fifty to protest the light bulb's right to not change, and twenty-five to hold a counter protest
Yale: None--New Haven looks better in the dark
Harvard: One--he holds the bulb and the world revolves around him
MIT: Five--one to design a nuclear powered one that never needs changing, one to figure out how to power the rest of Boston using that nuked light bulb two to install it, and one to write the computer program that controls the wall switch
Stanford: One, dude
Duke: A whole frat--but only one of them is sober enough to get the bulb out of the socket