Question: 4. Let X1...., X, be a random sample from the exponential distribution with rate @x, where the density is f(x;8x) = 0xe*** for r >

4. Let X1...., X, be a random sample from the exponential distribution with rate @x, where the density is f(x;8x) = 0xe*** for r > 0. Let Y..... Y be a random sample from the exponential distribution with rate Oy: X's and Y;'s are independent. (a) Find the distribution of (@xx)/(@Y). (b) Derive a (1 - a) confidence interval for 0x/0y

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