Statistical analyses included chi square, one-way analyses of variance, and cluster techniques.

Statistical analysis included chi square, t tests, univariate and multivariate logistic regression analyses.

Statistical analysis performed: Contingency table analysis, including chi 2 tests, and multivariate analysis using logistic regression.

Analysis included Chi square test and regression analysis.

So far, six companies including Chi Mei have pleaded guilty for their involvement in the plan, the DOJ said.

Other venues include Chi-X Canada, run by Chi-X Global, which is owned in part by Instinet, an agency broker, and privately held stock exchange CNSX.