ANALYSIS OF VARIANCE
Analysis of Variance (ANOVA) is a statistical method which used to test differences among two
or more means.
Mean: The mean is the average of the numbers,
you add up all the numbers and then
divide by the number of numbers.
Example of mean: What is the Mean of these numbers?
6, 11, 7
Add the numbers: 6 + 11 + 7 = 24
Divide by how many numbers (there are 3 numbers): 24 / 3 = 8
The Mean is 8
: Fertilizers X, Y and Z are tested on 12 samples of fields and yield per
hectare is as follows
Now test the significant difference between mean yields of three fertilizers at 5% level of