Mathematics, 12.04.2021 23:00 Andrewecolt1993

Computers in some vehicles calculate various quantities related to performance. One of these is the fuel efficiency, or gas mileage, usually expressed as miles per gallon (mpg). For one vehicle equipped in this way, the miles per gallon were recorded each time the gas tank was filled, and the computer was then reset. Suppose that the standard deviation is known to be 3.5 mpg. What is the standard deviation of the sample mean

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Computers in some vehicles calculate various quantities related to performance. One of these is the...