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OpenStudy (anonymous):
Please help with this question: A simple random sample of size n=36 is obtained from a population with μ=64 and σ=18. a. Describe the sampling distribution of x̄ b. what is P(x̄ < 62.6)? c. what is P(x̄ ≥ 68.7)? d. what is P(59.8 < x̄ < 65.9?
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OpenStudy (kropot72):
a. The sample size is greater than 30, therefore according to the Central Limit Theorem, the distribution of the sample means will be approximately Normal.
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