\begin{tabular}{ll}
\toprule
{} & Fwhm \\
\midrule
Normality 11 Hz & NaN \\
Normality 30 Hz & NaN \\
Wilcoxon 11 Hz - 30 Hz & 0.00, 3.2e-01, (1) \\
\bottomrule
\end{tabular}