In[18]:= data = {{{2, 4, 3}, {3, 9, 4}}, {{2, 4, 3}, {3, 9, 4}}};
In[19]:= KolmogorovSmirnovTest[data]
Out[19]= KolmogorovSmirnovTest[{{{2, 4, 3}, {3, 9, 4}}, {{2, 4,
3}, {3, 9, 4}}}]
In[20]:= Show[SmoothHistogram[data, PlotStyle -> Orange],
Plot[PDF[NormalDistribution[], x], {x, -4, 4}]]