Here is the example I used to shown that a shift in sample size and location could not account for the 5% decrease in breeding rates and BTB's reply where is called me a liar for simply providing a mathematical example to illustrate the point I was making.
quote:
original Bluebird2
For those that still believe that the shift in sample size is responsible for the 5% statewide decrease in breeding rates ,here is an example that shows that is simply impossible. If you take 3 WMUs with a breeding rate of 96% and 200 doe sampled and 3 WMUs with an 86% breeding rate and 100 does sampled the average breeding rate for all 6 WMUs is 92%.
Now if you reduce the sample size of the first 3 WMUs to 100 does sampled and keep the same breeding rate,while keeping the sample size in the other 3 WMUs constant, but increasing the breeding rate by just 4%, the average breeding rate for all six WMUs increases to 93.9%.
Therefore, despite the shift in sample sizes it is impossible to get a 5% decrease in breeding rates unless the statewide breeding rates decreased by at least 5% in most WMUs.
You claimed that RSB's explanation that sampling emphasis has shifted to areas with inherently lower breeding rates as an explanation for a drop in breeding rates was impossible. A fair way to present your case would have been to change sample size only. Sample size was cited as the reason for the change so to disprove RSB assertions, thats the only thing that should have been varied in your example. Your example wouldn't support your position with sampling emphasis being the only variable so you arbitrarily added in other changes to make your little formula produce the desired results.
This is a classic example of the old phrase "figures don't lie but liars can figure".
Most of your deceptions require more intense scrutiny to detect. This one was easier because you made the mistake of spelling out what you did in your calculations. Usually you hide it better when you do this kind of thing but you do it frequently.