Let X 1 , X 2 , X 3 , , X n be a random sample from a distribution with known variance Var(X i ) 2 , and unknown mean EX i Find a (1 ) confidence interval for Assume that n is large

Question: Let X 1 , X 2 , X 3 , . . ., X n be a random sample from a distribution with known variance

Let X₁, X₂, X₃, . . ., X_n be a random sample from a distribution with known variance Var(X_i) = σ², and unknown mean EX_i = θ. Find a (1 −α) confidence interval for θ. Assume that n is large.

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