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No, a t-test makes no assumptions that the underlying data is Gaussian. Again, most ml is done on raw data. If the raw feature is bimodal then the raw data is b
by eanzenberg 7y ago
No, a t-test makes no assumptions that the underlying data is Gaussian. Again, most ml is done on raw data. If the raw feature is bimodal then the raw data is bimodal.
- QuesnayJr 7y agoI can't figure out if you are agreeing or disagreeing with me. If you do non-penalized regression on raw data, then the t statstic will be approximately Gaussian, even if the raw data is bimodal. This follows from the CLT.
- eanzenberg 7y agoWhat is the standard deviation of a bimodal distribution with modes at 0 and inf? Is that a meaningful stat?