A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is place on one branch; the control on the second branch; and the insect on the third branch. The insect then chooses one of the two branches. Suppose that28 of 70 insects choose the pheromone branch. What are the null and alternative hypotheses for testingthat the percentage of the insects choosing the pheromonebranch is different from 50 %.