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Social Studies, 21.06.2019 14:40
The arizona department of transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. at least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.09 of the true proportion?
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Social Studies, 21.06.2019 21:00
In 100,000 years, the rotation of earth will be slower by how many seconds?
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Social Studies, 21.06.2019 22:00
Sam and ben have discovered some strange animals living in the woods behind their house. ben is excited because he believes they are marsupials, an animal he's never observed in the wild before. his brother is sure it is not. what feature should the boys consider in deciding whether the animals are marsupials?
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