4. Let X₁,..., Xn be n random samples of a normal distribution X~ N(μ, 300) where μ is unknown. What sample size n is required such that the width of the 97 percent confidence interval is barely larger than 5?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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4. Let X₁,..., Xn be n random samples of a normal distribution X~ N(μ, 300) where
μ is unknown. What sample size n is required such that the width of the 97 percent
confidence interval is barely larger than 5?
Transcribed Image Text:4. Let X₁,..., Xn be n random samples of a normal distribution X~ N(μ, 300) where μ is unknown. What sample size n is required such that the width of the 97 percent confidence interval is barely larger than 5?
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