Inferential Statisticshard
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Suppose we are testing H0:θ=0H_0: \theta = 0 against Ha:θ>0H_a: \theta > 0. We define the power function β(θ)=Pθ(Reject H0)\beta(\theta) = P_{\theta}(\text{Reject } H_0). If the test is unbiased, which of the following must hold for the power function?