I want to SEE your math, please. Put out or get out.
You misunderstand. I did not ask my brother for math, nor did he provide any. He was pissed enough that I bothered him on a Saturday asking a football related question as it was. His point was that he
could write an equation to show anything someone wanted. As he put it "pay me enough and I will write you an equation showing how an elephant can stand on a teacup without it breaking".
His point was that
math would only be required to prove the improbable rather than the other way around because basic common sense tells you all you need to know. I will spell it out for you a bit more slowly.
We have an experiment repeated twice. In each experiment 12 balls were handled the same way and in the same environment. All were inflated to 12.5 psi. The balls were then introduced into the same colder environment and the difference was measured. In the first run 11 of the balls dropped 2 psi and one stayed the same. What that means it you somehow have a situation where the laws of physics are working one way in 11 of the balls and a different way in the 12th ball. So you repeat the experiment and this time none of the balls show any change.
The only thing that has remained constant is the reaction of the 12th ball that showed no change in both experiments. In the second run the other 11 balls re-enforced the results of the only thing that was constant in both experiments...the no change reaction of the 12th ball. Hence a naturally occurring phenomenon is probably not the issue.
Could it be some form of physical defect? Leaky valves or perhaps the inner bladders of the first 11 were damaged due to initial over inflation? Perhaps but if they leaked in the first half they would leak in the second half too. So physical defection of the balls is probably not the case.
Ok what about a psi gauge that is not correctly calibrated? Possible, but provided it was left alone and not tampered with between experiments the gauge would show similar results. So that's probably not the case.
So what else is left? Human intervention which, either by accident or intent, resulted in the deflation of 11 balls in the first experiment only. In other words, someone let air out of the balls.
It's really not that tough