Question: 4. Let X1, X2, ..., Xn be a random sample from N(0,0), 0 > 0. Give an example of a pivotal quantity, and use it

4. Let X1, X2, ..., Xn be a random sample from

N(0,0), 0 > 0. Give an example of a pivotal quantity, and

4. Let X1, X2, ..., Xn be a random sample from N(0,0), 0 > 0. Give an example of a pivotal quantity, and use it to obtain a confidence-interval estimator of 0

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