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Hypothesis testing assesses whether data are inconsistent with a given hypothesis (usually a null hypothesis of no effect).

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Permutation test to compare correlations

Let $Y=\left[Y_1, Y_2, \dots, Y_n\right]$ be a sequence of exchangeable, approximately normal random variables. Let $X_1=\left[X_{11}, X_{12}, \dots, X_{1n}\right]$ and $X_2=\left[X_{21}, X_{22}, \dot …
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