This function implements the k-stepM algorithm for multiple hypothesis testing. It tests each hypothesis using the critical value calculated from the ECDF of the k-max differences, updating the critical value, and iterating until all hypotheses are tested.
original_stats: A numeric vector of original test statistics for each hypothesis.
bootstrap_stats: A numeric matrix of bootstrap test statistics, with rows representing bootstrap samples and columns representing hypotheses.
num_hypotheses: An integer specifying the total number of hypotheses.
alpha: A numeric value specifying the significance level.
k: An integer specifying the threshold number for controlling the k-familywise error rate.
Returns
A list containing two elements: 'signif', a logical vector indicating which hypotheses are rejected, and 'cv', a numeric vector of critical values used for each hypothesis.
Romano, Joseph P., Azeem M. Shaikh, and Michael Wolf. "Formalized data snooping based on generalized error rates." Econometric Theory 24.2 (2008): 404-447.