For a normal population with known variance 2, answer the following questions (a) What is the confidence level for the interval x 2 14 n (b) What is the confidence level for the interval x 2 149 n (c) What is the confidence level for the interval x 1 85 n

Question: For a normal population with known variance 2, answer the following questions: (a) What is the confidence level for the interval x 2.14/n? (b)

For a normal population with known variance σ2, answer the following questions: (a) What is the confidence level for the interval x – 2.14σ/√n?
(b) What is the confidence level for the interval x – 2.149σ/√n?
(c) What is the confidence level for the interval x – 1.85σ/√n?

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