Mathematics, 14.04.2020 00:14 psychocatgirl1
How many cars must be randomly selected and tested in order to estimate the mean braking distance of registered cars in the United States. We want 99% confidence that the sample mean is within 2 ft of the population mean, and the population standard deviation is known to be 7 ft.
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How many cars must be randomly selected and tested in order to estimate the mean braking distance of...
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