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**eladgro** I have a clinical trail where all the patients are suffering from a stroke.

Half of the patients got drug and the other half got placebo.

I need to assess the efficacy of the drug treatment for the entire sample by using the chi-square test in excel.

I have the values if the treatment(drug/placebo) was a succes or a failure for each patient (attached file).

My quesiton is what chi-square do i need to do in order to determine which drug is better? goodness-of-fit or independence?

I think independence but im not sure...

And also if anyone can help me with the null and the alternative hypothesis, cause i have no idea what to write :\

THANKS A LOT!!!!