XL: Formula to Calculate the Standard Error of the Mean (214076)


The information in this article applies to:

  • Microsoft Excel 2000
  • Microsoft Excel 2002
  • Microsoft Excel 97 for Windows
  • Microsoft Excel 2001 for Mac
  • Microsoft Excel 98 Macintosh Edition
This article was previously published under Q214076

SUMMARY

Although the Descriptive Statistics tool in the Analysis ToolPak can generate a report that includes the standard error of the mean, there is no function in Microsoft Excel to automatically calculate this value by itself.

MORE INFORMATION

To calculate the standard error of the mean by itself, use the one of the following formulas

= STANDARD DEVIATION / SQUARE ROOT OF THE POPULATION SIZE

-or-

= STDEV(range of values)/SQRT(number)

where:
  • The range of values is the data used to determine the standard deviation.

    -and-
  • The number is the size of all the possible random samples.
Modification Type:MajorLast Reviewed:5/28/2003
Keywords:kbhowto KB214076
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