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Chisquare method 
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#1
Nov2306, 04:42 AM

P: 18

Hi,
I trying to complete an exercise, but I have the idea that it is completely wrong what I'm doing. I use Matlab to program the exercise, and that is not the problem. The exercise is: X^2=sum((O_iE_i)^2/E_i with O_i the observed data and E_i the expectation value. But what will be E_i? An element of the possion dist. or something different? Second question is about the value of p^*. How can I calculate it? I have seen the definition p^*=P(D>=dmodel is correct) where D is the difference between the model and the expectation value. But what is d? That should be a value for you think that the method is good... And if I have d and D, I have totally no idea how to calculate P^* :( Thanks for your answers and your time! 


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