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Biology 17 Online
OpenStudy (anonymous):

what is a chi square test? How does the role of the degrees of freedom and critical value in performing a chi square test?

OpenStudy (abb0t):

Chi-square is a statistical test commonly used to compare observed data with data we would expect to obtain according to a specific hypothesis: http://www2.lv.psu.edu/jxm57/irp/chisquar.html

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