Mathematics, 23.06.2020 10:57 shanice13

How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 98% confidence that the sample mean is within 4 minutes of the population mean, and the population standard deviation is known to be 12 minutes. 25 35 49 60

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How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters?...