クラスカル・ウォリスの検定
xi = [ [12.2, 18.8, 18.2], [22.2, 20.5, 14.6, 20.8, 19.5, 26.3], [26.4, 32.5, 31.3, 24.5, 21.2, 22.4], ] oneWay = Num4AnovaLib::OneWayLayoutLib.new oneWay.kruskalwallis_test(xi, 0.05) => true