Mathematics, 14.07.2020 01:01 kev71
Suppose the sediment density(g/cm) of a randomly selected specimenfrom a certain region is normally distributed with mean 2.65 andstandard deviation .85.
a) If a random sample of 25 specimens is selected, what is theprobability that the sample average sediment density is at most3.00? Between 2.65 and 3.00
b) How large a sample size would be required to ensure thatthe first probability in part (a) is at least .99 ??
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Suppose the sediment density(g/cm) of a randomly selected specimenfrom a certain region is normally...
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