Question 358276: The fuel economy of a particular car model is normally distributed with a mean of 25 mpg and a standard deviation of 1.25 mpg. A random sample of 10 cars is selected.
Compute the standard error, standard deviation of the mean , for the sample of 10 cars.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The fuel economy of a particular car model is normally distributed with a mean of 25 mpg and a standard deviation of 1.25 mpg. A random sample of 10 cars is selected.
Compute the standard error, standard deviation of the mean , for the sample of 10 cars.
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standard deviation of the sample means of size 10 = 1.25/sqrt(10)
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Cheers,
Stan H.
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