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LolWolf
 2 years ago
Best ResponseYou've already chosen the best response.0You mean a chisquared distribution? It's widespread use in almost anything relating to hypothesis testing (e.g. confidence intervals, statistical inference, et al).

blues
 2 years ago
Best ResponseYou've already chosen the best response.0It is widely used in inference and hypothesis testing to analyse associations. In categorical factors. Like is a factor like smoking (maybe in a nonsmoking control group, a 1 pack a day group and a 2 pack a day group) associated with some outcome like increases in number of deaths from lung cancer or associated with more aggressive forms of lung cancer? You would use a chi square procedure to construct a confidence interval or run a hypothesis test or whatever to determine whether or not cigarette smoking is associated with bad outcomes.
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