In the oil industry, water that mixes with crude oil during production and transportation must be removed. Chemists have found that the oil can be...

independent variables investigated in the study are listed in the attached document "WATEROIL.txt". (Each variable was measured at two levelsa ''low'' level and a ''high'' level.) Sixteen water/oil mixtures were prepared using different combinations of the independent variables; then each emulsion was exposed to a high electric eld. In addition, three mixtures were tested when all independent variables were set to 0. The data for all 19 experiments are also given in the attached document "WATEROIL.txt".