I have met some problem with testifying differences between frequencies.
Let's me present it with concrete example.
1. I have 100 sample plots in three habitat types: deciduous (DW), coniferous (CW) and mixed (MW) wood.
2. Each of the plots (DW1,..., DW35, CW1,...,CW35, and...
The chi-squared statistic under the frequency within a block method is defined as 4M summation of (proportion of 1s in block - 0.5 ) ^2
where M is the length Of each block
I understand that this follows a chi-square goodness of fit test observed-expected frequency square. But where does this 4M...