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May 23, 2015

Homework Help: Calculating Chi Squared

Posted by Catherine on Friday, October 28, 2011 at 7:06pm.

I did a biology experiment and I have to use the chi^2 method to calculate statistical significance. I got data at different time points and I just want to make sure what I'm calculating this right. The data I got for one time point are 6 and 23 I know the equation for chi^2 is

chi^2= (obs-exp)^2/exp I calculated my expected value by taking the average of the ones I have, I got 14.5. Will my observed value be any of the two I have, or do I have the add them and that will be my observed value?

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