Wednesday, 15 August 2012

CHAPTER FOUR PART 2


4.3          STATISTICAL TECHNIQUES
           
The statistical test applies in this research work is known as the analysis of variance, to calculate where the differences between zones lie. This ratio called F- ratio employs the variance (α2) of group means as a measure of observed differences among groups/zones. 

Analysis of variance (ANOVA) is, therefore, a more versatile technique than the t-test. T-test is used only to test differences between two means. ANOVA can test the difference between two or more means.Consider the average traffic flow from the three (3) studied zones. The data below represent the total average number of traffic flow from the zones. (From Week 1- Week 4, the total average number of traffic flow in the towns are Added together, per daily; Mon-Sun, in one Month in each Zone). 













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