From Quinnipiac University poll:
Pennsylvania primary numbers: Clinton 50, Obama 41.
Dates conducted: March 24-31. Error margin: 2.5 points.
Poll also includes head-to-head general election match ups:
PA: Clinton 48, McCain 40; Obama 43, McCain 39.
FL: Clinton 44, McCain 42; McCain 46, Obama 37.
OH: Clinton 48, McCain 39; Obama 43, McCain 42.
