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posted by  minabruuke on 10/12/2008 8:52:11 PM  |  status: Closed  

sampling distributions

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If X is distributed as normal with μ=20 and σ^2=40 and a random sample of 16 variates is drawn from the population, what is the probability that their sample mean will be between 17 and 23?
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posted by John solomon on 10/12/2008 10:36:19 PM  |  status: Live
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