I wouldn’t expect there to be one—though you could always use 1⁄2 -- but the original requirement is not for a confidence level but for a way of generating a total ordering. I.e. the arbitrariness is that you have a free parameter in the first place, not so much the choice of it. That’s what makes it a free parameter, really!
I wouldn’t expect there to be one—though you could always use 1⁄2 -- but the original requirement is not for a confidence level but for a way of generating a total ordering. I.e. the arbitrariness is that you have a free parameter in the first place, not so much the choice of it. That’s what makes it a free parameter, really!