population of values has a normal distribution with μ = 107.4 and σ = 49.9 . A random sample of size n = 217 is drawn. Find the probability that a sample of size n = 217 is randomly selected with a mean greater than 108.4. Round your answer to four decimal place
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4 and σ = 49.9 is normally distributed: X̄ ~ N(μ, σ²/n) with μ = 107.4 and σ_X̄ = σ/√n. Show more…
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