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OpenStudy (anonymous):
The mean biology score of all undergraduate students at a college in a given year is 67.8, with a standard deviation of 11.5. What is the standard error of the mean for a sample of 70 students?
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OpenStudy (amistre64):
sd/sqrtn right? what is the definition of standard error
OpenStudy (amistre64):
\[\Large \sigma_{\bar x}=\sigma_x/\sqrt n\]
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