How Does an Insulating Sphere Affect Electric Field Distribution?

[Leeoku]

Homework Statement

[PLAIN]http://lulzimg.com/i23/62babd.jpg

Homework Equations

The Attempt at a Solution

im not sure why this is an answer. The first part I noticed is that it is an insulating sphere. Insulator means that all the charges can't leave the sphere. What i do know is that in a conducting sphere, charges go to the surface and the field of any distance inside the sphere is 0. Thus, I'm assuming the insulator has some effect on this..

 

[MisterX]

The charge distribution is given, and the question is about the field resulting from that charge distribution.

What i do know is that in a conducting sphere, charges go to the surface and the field of any distance inside the sphere is 0.

The charge in this hypothetical situation is spread on a hemisphere, so this is a different situation.