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Use the given information to find the minimum sample size required to estimate anunknown population...

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Basic Math

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Use the given information to find the minimum sample size required to estimate anunknown population mean ?. How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 90% confidence that the sample mean is within 4 minutes of the population mean, and the population standard deviation is known to be 9 minutes.34281420

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