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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: myelver10 on October 22, 2004, 10:09:39 AM

Title: f exp value
Post by: myelver10 on October 22, 2004, 10:09:39 AM

i don't quite understand how to determine the f value if all you are given is the standard deviation and mean of a set of data..    the formula my professor gave was the square of the standard deviation divided by sigma squared which is something i'm not really sure about ( what does the sigma stand for????)

Title: Re:f exp value
Post by: Donaldson Tan on October 22, 2004, 08:20:24 PM

this is basic statistics. i think your professor based the experimental data on the normal distribution curve and uses an equation (i know it exists) to map a given value to the standard statistical normal model

Title: Re:f exp value
Post by: Mitch on October 27, 2004, 05:26:29 AM

By f value do you mean degrees of freedom? It is a difficult concept to grasp, and I suggest doing a lot of examples until you get a hang of it.