how many stages of test are required which chi square test would i used to compare the different stages of an experiment why do we use multiple comparisons why use fisher exact can you test a group passing each stage of an experiment with different failure rates how to do multiple comparisons on nested data what test to use when multiple testing what test is done when two groups pass multiple times why do you do multiple tests why do we use the chi square for recursively what test should be used to test for different failure rates in each stage of the experiment? what is the test used to compare two groups in multiple comparison why use fishers exact test on nested data how to do multiple comparisons how does multiple comparisons work for groups what's the purpose of performing multiple comparisons in multiple stages what is recursive testing how do multiple tests compare two groups of data why use multiple tests why do chi squares work for repeated test