|Red Background||n = 35||= 3.39||s = 0.97|
|Blue Background||n = 36||= 3.97||s = 0.63|
- Example/Problem to Solve: (Use table A-3)
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.
- 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.
- State the conclusion