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5. (Gaussian variance testing) Let X1, ..., Xn be i.i.d. N(u, 2) random variables where u is known and o is unknown. Find the likelihood-ratio

5. (Gaussian variance testing) Let X1, ..., Xn be i.i.d. N(u, 2) random variables where u is known and o is unknown. Find the likelihood-ratio test at significance level a E (0, 1) for testing Ho : 0 2 00 against H1 : 0

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