Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 22.1 with a standard deviation of 4.3, while the 200 students in group 2 had a mean score of 19.6 with a standard deviation of 3.6. Complete parts (a) and (b) below. (a) Determine the 95% condence interval for the difference in scores, p1 - p2. Interpret the interval. The lower bound is D. The upper bound is D. (Round to three decimal places as needed.) Interpret the interval. Choose the correct answer below. 0 A. There is a 95% probability that the difference of the means is in the interval. 0 B. The researchers are 95% condent that the difference of the means is in the interval. 0 C. The researchers are 95% condent that the difference between randomly selected individuals will be in the interval. 0 D. There is a 95% probability that the difference between randomly selected individuals will be in the interval. (b) What does this say about priming? O A. Since the 95% condence interval contains zero, the results suggest that priming does have an effect on scores. 0 B. Since the 95% condence interval contains zero, the results suggest that priming does not have an effect on scores. 0 C. Since the 95% condence interval does not contain zero, the results suggest that priming does have an effect on scores. 0 D. Since the 95% condence interval does not contain zero, the results suggest that priming does not have an effect on scores