public function dataProviderForTTestOneSample()
{
return [[130.1, 21.21, 100, 120, ['t' => 4.762, 'p1' => 0, 'p2' => 0]], [280, 50, 15, 300, ['t' => -1.549, 'p1' => 0.0718, 'p2' => 0.1437]], [130.5, 32.4, 30, 142.1, ['t' => -1.960982, 'p1' => 0.02977385, 'p2' => 0.0595477]], [25.12, 2.91, 18, 24.64, ['t' => 0.69981702, 'p1' => 0.2467538, 'p2' => 0.4935]]];
}