(Solution) - Suppose that X1 Xn form a -(2025 Original AI-Free Solution)

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Suppose that X1, . . . , Xn form a random sample from the normal distribution with unknown mean ? and unknown variance ?2. Describe a method for constructing aconfidence interval for ?2 with a specified confidence coefficient ? (0 < ? <1). Hint: Determine constants c1 and c2 such that