Analysis of Variance:
Variance is the square of standard deviation.
Analysis of variance is a very powerful technique in the discipline of Experimental statistics.
It solves those problems where, even t-test is unable to make clear which, of the many significant differences, really indicate the true differences.
- Variance between varieties or variance between treatments.
- Variance within varieties or variance within treatments.
The variance within the treatments is smaller than the variance between the treatments and always there is some cause if a good amount of difference between the variances is seen.
