\begin{table}[ht!]
    \centering
    \linespread{1.5}\selectfont
    
    \fontsize{10pt}{12pt}\selectfont{
    \begin{tabular}{cccc}
     	\Xhline{1\arrayrulewidth}
	& Data Structure &  Type of test & Power  \\
	\Xhline{1\arrayrulewidth}   
     	a & Non-normal distribution & Kendal \(\tau\) rank correlation & ---  \\
     	\Xhline{1\arrayrulewidth}   
	 
    \end{tabular}}
    
	    \caption[Statistical Table]{Statistical Table. Descriptive statistics including non-parametric Kendall \(\tau\) rank correlations are used. Statistical hypothesis tests are not used.}
	     
    \label{tab:stats}
\end{table}