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B Uncertainty of Mean Values

  1. May 20, 2016 #1
    I am trying to find the uncertainty of the mean of 3 values.
    These values were calculated from experiments to calculate the enthalpy change of various alcohols.
    These values are independent values.

    −283 ± 11, −175 ± 9, −282 ± 11

    How would I calculate the uncertainty of these values?
    Thank you.
  2. jcsd
  3. May 21, 2016 #2

    Simon Bridge

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  4. May 21, 2016 #3

    Vanadium 50

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    If those numbers are supposed to be measurements of the same thing, I wouldn't average them. Do you know why?
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