Mathematics, 22.04.2020 23:27 BreadOfTheBear

The mean salary of people living in a certain city is $37,500 with a standard deviation of $2,119. A sample of n people will be selected at random from those living in the city. Find the smallest sample size n that will guarantee at least a 90% chance of the sample mean income being within $500 of the population mean income.

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The mean salary of people living in a certain city is $37,500 with a standard deviation of $2,119. A...