The Data:
Creative Scores


Red Background

n = 35

= 3.39

s = 0.97

Blue Background

n = 36

= 3.97

s = 0.63

1. Example/Problem to Solve: (Use table A3)
Using the data from this color creativity example, construct a 98% confidence interval estimate for the difference between the mean creativity score for those with a red background and the mean creativity score for those with a blue background.
2. We are 98% confident that the limits 1.05 and 0.11 actually do contain the difference between the two population means.
Because those limits do not include 0, our interval suggests that there is a significant difference between the two means.
3. State the conclusion