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Unformatted text preview: 12. Conclusion: because the f value is significant, we can reject the null hypothesis 13. Mean 30: 75.60, Mean 45: 84.70, Mean: 92.40 14. Null Hypothesis: There will be no difference between class and test scores 15. Mean: 26.25, Standard Deviation: 12.189 16. SS B = (X GROUP X GRAND ) = 8375.250, SS W = (X X MEAN ) = 390.000, SS T = X 2 (X T ) 2 /Nk = 8765.250 17. df B = k 1 = 4 1 = 3 df W = N k = 60 4 = 56 18. F = 2791,750 / 6.964 = 400.867 19. F is significant at 0.01 20. The SS W is so small because the standard deviations for the test scores for each of the classes is small so therefore the (X X MEAN ) is small and therefore the (X X MEAN ) will also be very fall. 21. Because the f value is significant, we can reject the null hypothesis 22. The sophomores were labeled H because S was used to correspond to the seniors...
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This note was uploaded on 02/11/2008 for the course IPHY 2800 taught by Professor Decker,mik during the Spring '08 term at Colorado.
- Spring '08