Mathematics, 25.02.2022 21:40 court3138

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 for each sample. Calculate the mean and standard deviation of the sampling distribution of -x.

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A certain region of America with over 500,000 households has a mean household income of $70,000 with...