Mathematics, 30.03.2020 18:52, citiboy45
The mean income per person in the United States is $50,000, and the distribution of incomes follows a normal distribution. A random sample of 10 residents of Wilmington, Delaware, had a mean of $60,000 with a standard deviation of $10,000. At the 0.05 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average
Answers: 3
The mean income per person in the United States is $50,000, and the distribution of incomes follows...
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