Homework: Ch 11 HW: Two

Homework: Ch 11 HW: Two Sample Procedure HW Score: 45.8%, 7.79 of Question 13, 11.3.11 17 points Part 1 of 3 O Points .Oofl Save Two researchers conducted a study in which two groups ot students were asked to answer 42 trivia questions trom 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 tnougnts are a form ot priming. The 200 students in group 1 had a mean score ot 21.6 witn a standard deviation ot 3.3, while the 200 students in group 2 nad a mean score ot 19.2 witn a standard deviation of 4.5. Complete parts (a) and (b) below. (a) Determine the 90% confidence interval tor the ditterence in scores, VII The lower bound is The upper bound is (Round to three decimal places as needed.) h. Interpret the interval.