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Business, 08.11.2019 04:31 Lalagrl

The mean income per person in the united states is $41,500, and the distribution of incomes follows a normal distribution. a random sample of 10 residents of wilmington, delaware, had a mean of $47,500 with a standard deviation of $10,600. at the 0.010 level of significance, is that enough evidence to conclude that residents of wilmington, delaware, have more income than the national average?

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The mean income per person in the united states is $41,500, and the distribution of incomes follows...
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