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1 1 .3.1 1 Question Help 7 'u' 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 23.3 with a standard deviation of 3.7, while the 200 students in group 2 had a mean score of 19.5 with a standard deviation of 3.1. Complete parts (a) and (b) below. (a) Determine the 90% condence interval for the difference in scores, u1 p2. Interpret the interval. The lower bound is D. The upper bound is D. (Round to three decimal places as needed.) Referring to the information in question 7, what does this say about priming? A. Since the 95% confidence interval contains zero, the results suggest that priming does have an effect on scores. B. Since the 95% confidence interval contains zero, the results suggest that priming does not have an effect on scores. C. Since the 95% confidence interval does not contain zero, the results suggest that priming does have an effect on scores. D. Since the 95% confidence interval does not contain zero, the results suggest that priming does not have an effect on scores