Exercise

t-statistic

Using the permuted datasets (recall, the randomization forces the null hypothesis to be true), investigate the distribution of the standardized slope statistics (the slope, which has been divided by the standard error). Note that the distribution of the standardized slope is well described by a t-distribution.

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Filter twins_perm for rows where term equals "Biological_perm".
Calculated the degrees of freedom of twins, as the number of its rows minus two.

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Instructions 1/2

Exercise