The color vision of birds plays a role in their foraging behavior: birds use color to select and avoid certain types of food. in a study on the pecking behavior of 1-day-old bobwhites, an area was painted white, and four pins of different colors were inserted. the color of the pin chosen on the bird's first peck was noted for each of a srs of 33 bobwhites, resulting in the data given below. use this information to answer the following 3 questions. color frequency relative frequency blue 16 48.5% green 8 24.2% yellow 6 18.2% red 3 9.1% (a) what set of hypotheses should the researchers use to test that the proportion of times that the blue pin is selected is not what it would be if each color of pin were chosen randomly?