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Question: Suppose you are a pollster and are planning to take a sample that is very small relative to the population. In terms of estimating a population mean, can you say that a sample of size 9n is about 3 times as accurate as a sample of size n? Why or why not? Does the answer depend on the population size? For example, would it matter if the population size were 50 million instead of 10 million?

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