Exhibit 10

question 19

Multiple Choice

Exhibit 10.1 A farmer uses a lot of fertilizer to grow his crops.The farmer's manager thinks fertilizer products from distributor A contain more of the nitrogen that his plants need than distributor B's fertilizer does.He takes two independent samples of four batches of fertilizer from each distributor and measures the amount of nitrogen in each batch.Fertilizer from distributor A contained 23 pounds per batch and fertilizer from distributor B contained 18 pounds per batch.Suppose the population standard deviation for distributor A and distributor B is four pounds per batch and five pounds per batch,respectively.Assume the distribution of nitrogen in fertilizer is normally distributed.Let and represent the average amount of nitrogen per batch for fertilizer's A and B,respectively. Refer to Exhibit 10.1.Calculate the value of the test statistic.

Grasp the concept of alleles and their role in genetic variation.

Appreciate the theories explaining altruistic behavior in animals and their application to understanding human behavior.

Understand the concept of heritability and its calculation in different traits or behaviors.

Analyze the role of genetics versus environment in shaping individual differences in traits such as intelligence and happiness.