the correct option is a. difference between the groups' averages, large absolute
I am trying to perform an A/B test to see if two samples come from the same underlying distribution. My alternative hypothesis is that the samples do not come from the same underlying distribution. The difference between the groups should be chosen as the test statistic averages large absolute values of this statistic provide evidence in favor of the alternative hypothesis.
learn more about of statistic here
https://brainly.com/question/29820074
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