\begin{tabular}{ll}
\toprule
{} &                Fwhm \\
\midrule
Normality 11 Hz        &       2.48, 2.9e-01 \\
Normality 30 Hz        &      11.40, 3.3e-03 \\
Wilcoxon 11 Hz - 30 Hz &  0.00, 1.2e-02, (8) \\
\bottomrule
\end{tabular}