I am at present working on the topic "a Study on Factors influencing investment preference"

Your position, as stated, is too extreme I think. There are accepted rules for the interpretation of statistical tests (e.g. the 95% confidence limit etc.) and it would be hard to convince most reasonable people that your decision is wise if you do not abide to those rules. You can indeed decide to go to stricter or looser rules or more complex ones, but that should transparent to the others, so that they can form their own judgment. That's for collective acceptance of decisions and proofs (as in science). If you are alone (investing your own money for example), I would still argue that it would be foolish to bet against strong evidence, but that's a matter of "utility", not "probability". Utilities are clearly subjective.

Thanks Mr.Frederic Yves Bois. I agree with you fully. I understood that collective acceptance is what research findings are all about. Standards have to be met when we need to prove something objectively.

Thanks

Ferramentas estatísticas deve ser consideradas, a partir do momento em que definimos parâmetros a serem atingidos. Sem isso não temos como validar uma analise. Só precisamos ter em mente que uma ferramenta indidualmente, dificilmente nos dará respostas, que definam ações, precisamos de discussão e para tal no minimo duas deve ser utilizadas...uma quanti e outra quali. 

i could not understand sir. English i can undersrand