Question

IHP-340 Statistics:
When doing a chi square test, how do I handle negative numbers? If my

observed number-expected count = a negative number, should I continue with it as a negative or change it to a positive? I hope this makes sense. As an example:

I have a row total of 201 and a column of 256. If I multiply those 2 and get 51,456, then divide it by the total, which is 387, I get an expected count of 132.961.

My observed number is 132. When I subtract my expected count from the observed number I get -0.961. If I keep it a negative and square it, I get -1.922. But if I turn it into a positive, I am getting 0.923. I think this is where I am going wrong in my efforts. Thank you for the help.

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