How are the media and interest groups in competition to inform the public?

In a way, you could consider the media to be an interest group,

interest groups try to defend a cause. they work toward a cause mainly by convincing people that they are right and lobbying politions and spreading propaganda. the proaganda can be slanted to support a certain viewpoint

media is just any way to spread information. it can be also slanted to support a certain viewpoint

interest groups can use media to spread propagana. however, media can also be used to spread 'anti-propaganda' that is contrary to their cause
they compete to convice people that their truth is more true than the other truth

The jugular vein located, on an animal, starts proximally at the base of the neck and moving towards the head along the jugular groove.

S^2 = a4^2 = a4 * 4 = a16 centimeters = area of the square