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Sequential Probability Ratio Tests Based on Improper Priors

机译:基于不正确先验的顺序概率比检验

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摘要

One way of handling composite hypotheses by SPRT's is to integrate out nuisance parameters under both the null and alternative hypotheses and then form an SPRT. If the prior is improper, Wald inequalities will not hold in general. We provide sufficient conditions and then verify that the usual sequential |t| -test satisfies these conditions but Wald's |t|-test does not satisfy these conditions and in fact cannot satisfy a strengthened form of these inequalities in general. Nonetheless, simulations show Wald's inequalities for A, B, corresponding to usual small α, β, will usually hold.
机译:通过SPRT处理复合假设的一种方法是在原假设和替代假设下整合有害参数,然后形成SPRT。如果先验不当,则Wald不平等一般不会成立。我们提供了充分的条件,然后验证通常的顺序| t |。 -t检验满足这些条件,但Wald的| t |-检验不满足这些条件,并且实际上不能满足这些不等式的强化形式。尽管如此,仿真显示A,B的Wald不等式(通常与小α,β对应)通常成立。

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