I am going to answer my own question for a reference for the future. I just solved my own problem. I have a standard garbage disposal.
-- If a hose is attached to the side of the garbage disposal, there should be an opening for the water to drain out. If there is no opening, you have a piece of plastic (a plug) that needs to be removed. New installations frequently forget to do this. See image.
-- Turn off power to your dishwasher and garbage disposal, preferably at your circuit board, so you do not electrocute yourself.
---You should be able to notice this opening. If you do not have one, you have a plug that needs to come out. DO NOT STICK YOUR FINGER DOWN THERE WITH POWER ON PLEASE!
--- Slip the guard off the hose to your garbage disposal with a pair of pliers and remove the hose.
--- Remove the plug from the side of your garbage disposal. I was able to grab mine with a pair of needle nose pliers. Other say it knocks out, but mine came out easily by pulling them. My plug was 1/4 inches and made from white plastic.
--- Reconnect the hose and guard and you are in business.