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Math Help - Standard Error of the Mean

  1. #1
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    Standard Error of the Mean

    Hi

    I have been set a question on why the standard error of the means is significant.
    I have come to an answer of because you can tell that 68% of the sample means lie between the population mean and 1 standard deviation either side....etc.
    I'm not sure what else to add.

    Any help would be wonderful

    thanks

    Gracey
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  2. #2
    MHF Contributor matheagle's Avatar
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    that 68% is correct in the normal setting
    but st deviations do tell you how spread out your data/random variable is.
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