Mathematics, 29.07.2020 02:01 mrstealyogirl40
Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.68 and standard deviation 0.92.
A. If a random sample of 25 specimens is selected, what is theprobability that the sample average sediment density is at most3.00? Between 2.68 and 3.00
B. How large a sample size would be required to ensure thatthe first probability in part (a) is at least .99 ?
Answers: 3
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Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normall...
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