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The Effect of Fixed and Random Models in the Interpretation of Biological Data

Owoloko, E. A. and Alika, J. E. (2010) The Effect of Fixed and Random Models in the Interpretation of Biological Data. Journal of Mathematics and Statistics, 6 (1). pp. 68-71. ISSN 1549-3644

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Problem statement: Data on variation of sugar content in maize Ogi, fermented maize flour, obtained from 4 maize hybrids subjected to 5 different days of fermentation were used to test the effects of fixed and random statistical models on the interpretation of biological results. Approach: The data were subjected to analysis of variance using both fixed and random models. Results: Highly significant difference (p = 0.1) was present among hybrids, days of fermentation and interaction of hybrids and days, where the fixed model was used. On the other hand, where the random model was assumed, the interaction component of variance was found not to be significantly different from zero contrary to the findings with the fixed model. Conclusion/Recommendations: The results indicate that the statistical model used may influence interpretation of biological results.

Item Type: Article
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Engineering, Science and Mathematics > School of Mathematics
Depositing User: Mr Adewole Adewumi
Date Deposited: 19 Jun 2011 18:43
Last Modified: 13 Dec 2011 21:13

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