Question

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 22.3 with a standard deviation of 4.4​, while the 200 students in group 2 had a mean score of 17.6 with a standard deviation of 3.1. Complete parts ​(a) and ​(b) below

Determine the

9595​%

confidence interval for the difference in​ scores,

mu 1 minus mu 2μ1−μ2.

Interpret the interval.

Answer 1

Interpret:

there are 95% Confident that the difference in the mean score between student in group 1 asked to spend 5 Min in thinking about what would be mean to be profesor ingroup 2 asked to thi k about soccar holding in between 3.9517 and 5.4482