Subhashini, M H and Arumugam, M (1981) Analysis of variance(Anova). CMFRI Special Publication (7). pp. 169170.

PDF
Spl_726.pdf Download (168kB) 
Abstract
In ttest, the difference between 2 sample means are tested for Significance. In ANOVA the differences between means of more than 2 samples are tested for significance. This is done by examining the variation within the whole groups of sample means. It consists of a comparison between 2 estimates of the overall variation (of the complete set of measurements included in the analyses), one estimate being based on the variance of sample means about the grand mean. The other based on the variance of the individual measurements about their treatment means. The first estimate is called treatment variance. The second estimate is called error variance. If the null hypothesis is true, the ratio of these estimates would approximate 1. If, on the other hand, the sample means estimates differ from the population or group means then the ratio would exceed 1, In practice, this ratio is calculated as F and the level of probability of obtaining such a ratio is determined if the null hypothesis were to be true.
Item Type:  Article 

Uncontrolled Keywords:  Analysis of variance; Anova; Crustacean Biochemistry and Physiology 
Subjects:  Crustacean Fisheries Fish and Fisheries > Biochemical Study 
Divisions:  Contributors CMFRICochin > Marine Capture > Crustacean Fisheries Subject Areas > CMFRI Brochures > CMFRICochin > Marine Capture > Crustacean Fisheries 
Depositing User:  Geetha P Mrs 
Date Deposited:  24 Sep 2010 06:10 
Last Modified:  09 Sep 2015 15:21 
URI:  http://eprints.cmfri.org.in/id/eprint/3326 
Actions (login required)
View Item 