Under the assumptions of Theorem 13.2.1, suppose k 0 and >> 0. Show, for any N

Under the assumptions of Theorem 13.2.1, suppose θk → θ0 and β>α> 0. Show, for any N < ∞, there does not exist a test φk with k ≤ N such that lim infk Eθk (φk) ≥ β.