Draw the indifference curves for the following individuals preferences for two goods: hamburgers and beer. Al likes beer but hates hamburgers Yao eats one hamburger and washes it down with one beer. She will not consume an additional unit of one beer without an additional unit of one hamburger and vice versa. Santiago hates hamburgers and he hates beer

In terms of the "great wheel of science", statistics are central to the research process (a) only between the hypothesis phase and the observation phase (b) only between the observation phase and the empirical generalization phase (c) only between the theory phase and the hypothesis phase (d) only between the empirical generalization phase and the theory phase