題組內容

3. (50%) Let $X1, X2, \dots, X_n$ be a random sample of size $n$ from a distribution that has pdf

$$f(x) = \theta(1 - x)^{\theta-1}, \quad 0 < x < 1, \theta > 0.$$
(d) (10%) Consider testing

H0: θ = 1 against H1: θ ≠ 1.

(ii) \( (5\%) \) Find the likelihood ratio test statistic and write down the rejection criterion.