An economist wants to find the mean annual income for all adults in the United States. She

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An economist wants to find the mean annual income for all adults in the United States. She knows that it is not practical to survey each member of the adult population, so she refers to an almanac and finds the mean income listed for each of the 50 states. She adds the 50 state means and divides by 50. Is the result the mean income for the United States? Why or why not?

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Statistical Reasoning For Everyday Life

ISBN: 9780321904645

4th International Edition

Authors: Jeffrey Bennett, William L. Briggs, Mario F. Triola

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