There are some people think that they have good instinct about when others are saying a lie, while others do not feel they have this capacity. Are the more "intuitive" people better able to detect lies? Every of the 100 people who thought they had good intuitive skills were shown a video of a person saying the name of his / her favorite movie (Young from the 2002). The person was saying the truth in some of the clips shown, while in others the person was lying. Another 100 people who said not to have intuitive abilities were shown similar video clips. 59 of the 100 "intuitive" subjects correctly identified if the person in the video was lying, and 69 of the 100 "nonintuitive" subjects correctly identified if the person in the video was lying.

a. Draw a graph that best presents these data. What association is suggested? (How can you obtain these graph in RStudio?)

b. Test whether the success rates of the two groups were different. For part b, do a chi squared contingency test (with Yates correction), and a fisher exact test. Do you get the same result?

c. Are "intuitive" people better at detecting lies than "nonintuitive" people? Calculate an odds ratio and confidence interval for your answer. Interpret your result.