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Distributions are only assumed. There is no such thing as truly normal data or sampling distribution.
by clircle 7y ago
Distributions are only assumed. There is no such thing as truly normal data or sampling distribution.
- paulddraper 7y agoSure, though that's a bit like saying there aren't any perfect squares only things you assume are squares.
- clircle 7y agoThere is a difference. Distributions are tested in practice, for example, by using a goodness-of-fit test. Often if the hypothesis of normality is not rejected, people think this implies normality.