A wildlife refuge in South America has howler monkeys and spider monkeys. A biologist working there randomly selected eight adults of each type of monkey, weighed them, and recorded their weights in pounds. howler monkey: {15, 16, 17, 17, 17, 17, 18, 19} spider monkey: {12, 13, 13, 14, 14, 14, 16, 16} (a) Calculate the mean and MAD for each type of monkey. (b) Calculate the means-to-MAD ratio for the two types of monkeys. (c) What inference can be made about the weight of both types of monkeys? Expla