A geologist who needs an estimate of the porosity of a sandy soil in large field collects
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A geologist who needs an estimate of the porosity of a sandy soil in large field collects 15 specimens, which yields a mean of 31%. Studies have shown that fine mixed sands have a mean of approximately 32% and a standard deviation of 2%. What is the probability that the samples are actually from fine mixed sand?
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Related Book For 
Probability Statistics And Reliability For Engineers And Scientists
ISBN: 9781439809518
3rd Edition
Authors: Bilal M. Ayyub, Richard H. McCuen
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