STATISTICS SPSS Assignment 9

# STATISTICS SPSS Assignment 9 - 12. Conclusion: because the...

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Rachel Ackermann SPSS Assignment 9 1. Null Hypothesis: There will be no significant difference between the subjects who trained for 30, 45, and 60 minutes 2. Research Hypothesis: There is a significant between the subjects who trained for 30, 45, and 60 minutes 3. Mean: 84.23, Standard Deviation: 10.454 4. SS T = ΣX 2 – (ΣX T ) 2 /Nk = 65,250 – (1350) 2 /(30)(2) = 34,875 5. Explained Sum of Squares: SS W = Σ (X – X MEAN ) = 1754.900 6. Error Sum of Squares: SS B = Σ (X GROUP – X GRAND ) = 1414.467 7. The degrees of freedom for Exercise Duration is equal to 2 because k is 3 (30, 45, and 60 are all separate groups) therefore df = 3-1 = 2. 8. df for Residual 27: df = 30 – 3 = 27 9. If null hypothesis is true, each mean score should be equal, that value should be equal to approximately ~64.996 10. MS B = 1414.467 / 2 = 707.233 MS W = 1754.900 / 27 = 64.996 F = MS B / MS W = 707.233 / 64.996 = 10.881 11. Because it exceeds all the table values, f is significant at 0.01
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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.

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