public function dataProviderForTwoSidedAlpha()
{
return [[1, '1.00', 0], [1, '0.50', 1.0], [1, '0.40', 1.376], [1, 0.05, 12.71], [1, 0.002, 318.3], [1, 0.001, 636.6], [10, '1.00', 0], [10, '0.50', 0.7], [10, '0.40', 0.879], [10, '0.10', 1.812], [10, 0.01, 3.169], [10, 0.001, 4.587], ['infinity', '1.00', 0], ['infinity', '0.50', 0.674], ['infinity', 0.05, 1.96], ['infinity', 0.001, 3.291]];
}