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Unformatted text preview: β 1 is significant. 3. a. μ 1 : mean score of the northern university μ 2 : mean score of the central university μ 3 : mean score of the southern university H : μ 1 =μ 2 = μ 3 H a : Not all the population means are equal. b. Sources Sum of of Variation Squares df Mean Square F Treatments 90 2 45 5.401 Error 100 12 8.33 Total 190 14 c. F = 5.401 > 3.89; Reject H At 5% level of significance, there is a significant difference in the average scores of the students from the three universities....
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- Spring '08
- Regression Analysis, Mean, Means, D D C B B C B C D D B C