(b-2). (2 points) A neuroscience lab is interested in how consumption of sugar and coco may effect development of intelligence and brain growth. They collect data on chocolate consumption and number of Nobel prize laureates in each nation, and finds the correlation to be statistically significant. Should they conclude that there exists a relationship between chocolate consumption and intelligence? (Ia-3). (1 point) In order to study the relation between chocolate consumption and intelligence, what can they do