I have 2 questions regarding doing chi square test in matlab.
1) I have a traditional 2x2 contingency table with rows = disease, no disease; columns = experimental condition, control condition.
How do I run a chi square on this? I read the crosstab function but didn't quite understand it.
2) I have nx2 contingency tables where columns are still experimental vs control condition. The rows are now a list of ethnicities. I would like to know if ethnicity distribution differed between the 2 conditions. How would I go about this?