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Suppose a simple random sample of size n = 34 is obtained from a population with μ = 30 and σ = 4.
a)Is the sampling distribution of x approximately normal.b)What is P(x > 30.2)?c)What is P(x ≤ 30.6)?d)What is P(28.7 ≤ x ≤ 31.1)?
Statistics and Probability, Statistics
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