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What is a p-value? (Updated and extended version)
Автор: jbstatistics
Загружено: 2013-01-06
Просмотров: 109352
Описание:
An introduction to the concept of the p-value, in the context of one-sample Z tests for the population mean. Much of the underlying logic holds for other tests as well. I discuss what a p-value is, then using simulation I illustrate its distribution when the null hypothesis is true and when the null hypothesis is false. I then give a rough guideline of what different p-values mean in terms of evidence against the null hypothesis.
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