I have limited time please solve it fast!

20 * (4 Points) Let X1, X2, ..., Xn be a random sample of size n from a distribution with probability density function (pdf) given as: 02 f(x;0) = x>0; 0 0 otherwise 0 then find the approximate 90% confidence interval (CI) for the unknown parameter (0) if the MLE of O is and the two critical values are 91 = -21-(a/2) and 92 = 21-a/2)? 2n = EX=1 Hint: 20.90 = 1.28, 20.95 = 1.645, 20.975 1.96, 20.99 = 2.33, 20.995 = 2.575 2n van 2n 2n (A) CI = 1.645 In 1 1 T + 1.645 Lisix 2n 2n (B) CI = 1.28 2n + 1.28 1 21.) 1 Lirixi 2n 2n 2n 2n (C) CI = In I-1.645 T +1.645 , 2n v2n 2n (D) CI = f + 1.28 2n 1 1 1.28 Lisaxi OD OB