Question: Let 1,2,3,4,5,6,7,8,9,10, be iid random sample from a distribution f(x; ?) = ?e??x for x ? 0 and ? > 0. Suppose it is given

Let 1,2,3,4,5,6,7,8,9,10, be iid random sample from a distribution f(x; ?) = ?e??x for x ? 0 and ? > 0. Suppose it is given that 2? Xn i=1 Xi ? ? 2 2n where Xi 's are iid random samples from the above distribution.3 Then a 95% confidence interval for ? is given by (A) Cannot be found from the given information. (B) (0.181, 0.621) (C) (1.61, 5.525) (D) (9.591,34.170) (E) None of the above.

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