Math Problem Statement
Samples are drawn from a population with mean 112 and standard deviation 47. Each sample has 399 randomly and independently chosen elements. Use the Central Limit Theorem to estimate the probability that a sample mean is between 111 and 119. Write your answer as a decimal rounded to the nearest thousandth.
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Central Limit Theorem
Normal Distribution
Z-scores
Formulas
Standard Error = σ / √n
Z = (X - μ) / SE
P(a ≤ X ≤ b) = P(z(b)) - P(z(a))
Theorems
Central Limit Theorem
Suitable Grade Level
College/University (Statistics Course)
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