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The normality assumption is a large stretch, especially since there an absolute lower limit near the observation and a somewhat discrete distribution, so a t-te
by tstenner 2y ago
The normality assumption is a large stretch, especially since there an absolute lower limit near the observation and a somewhat discrete distribution, so a t-test isn't appropriate. But then again it looks significant, so there's no real need for a test
- jampekka 2y agoSomething like Mann-Whitney U would be safer. But it's indeed quite obvious from the samples that the difference is robust.