QUESTION 3 You are opening a restaurant soon and want to run an experiment to see which plates, plain or decorated, make your food look more appetizing. As people come in the door, you randomly assign them to two dining rooms: A or B. You serve your food in room A on plain plates and your food in room B on decorated plates. Then, both groups get the same survey asking how appetizing the food looks. Which of the following is an example of an experimental confound? O All of these are confounds Dining room A has dim light and dining room B has bright light O You didn't measure initial hunger level before starting the study There is no music played during your experiment but you plan to have music playing when you open your restaurant