Homework Help: statistics help please

Posted by toyman on Friday, July 22, 2011 at 1:56am.

For a random sample of 10 men, the mean head circumference is x = 57.3 cm and the sample standard deviation is s = 2 cm. The standard error of the sample mean is:

a. 0.200
b. 0.447
c. 0.500
d. 0.632

statistics help please - drwls, Friday, July 22, 2011 at 4:38am
2/sqrt(10) = 0.632

It is explained here:

http://en.wikipedia.org/wiki/Standard_error_(statistics)

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