a. The participants in the study were five capuchin monkeys. To what population do you think the results apply?
b. The researchers were interested in comparing the proportion of times the monkeys would cooperate by trading the token for the cu­cumber after observing another monkey doing the same, versus observing another monkey receiving a free grape. The null hypothesis in this test is that the proportion of times monkeys in the population would cooperate after observing either of the two conditions is the same. What is the alternative hypothesis?