Mathematics, 05.11.2020 20:50 msdmdsm1186
A certain region of America with over 500,000 households has a mean household income of $ 70 , 000 with a standard deviation of 20, 000. Economists plan to take random samples of 625 households and calculate the sample mean income x on top for each sample.
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A certain region of America with over 500,000 households has a mean household income of $ 70 , 000 w...
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