public function dataProviderForOneSidedAlpha()
{
return [[1, '0.50', 0], [1, 0.25, 1.0], [1, '0.20', 1.376], [1, 0.025, 12.71], [1, 0.001, 318.3], [1, 0.0005, 636.6], [10, '0.50', 0], [10, 0.25, 0.7], [10, '0.20', 0.879], [10, 0.05, 1.812], [10, 0.005, 3.169], [10, 0.0005, 4.587], ['infinity', '0.50', 0], ['infinity', 0.25, 0.674], ['infinity', 0.025, 1.96], ['infinity', 0.0005, 3.291]];
}