The Data:
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Creative Scores
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Red Background
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n = 35
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= 3.39
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s = 0.97
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Blue Background
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n = 36
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= 3.97
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s = 0.63
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1. Problem to Solve:
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.