what is a permutation test how do you test for permutation why do we do a permutation test what is the normal range for a permutation test? when is the xi and yi permutated what are the dependent and independent variable in a permutation test based on the square root and the square root? what is xi in a permutation test what is the difference between yi and xi what is xi in a permutation test what is the rp of a permutating variable which variable has the greatest dependence on xi in a permutation test what does xi mean what is the ri for yi in a permutation test how to do a permutation test on yi in a rx what variable is permuted how to test for a permutation in linear regression how to test for tolerance in permutation what is the test for a permutation in linear regression? what is the normal r2 for permutation testing how to do a permutation test on a linear model