\documentclass[border = 3mmm]{standalone}
\usepackage{pgfplots}
\pgfplotsset{width=10cm,height=2.65cm,compat=newest}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
xmin=7.5,
xmax=18.5,
% hide y axis,
axis y line=none,
axis x line=bottom,
axis x line shift={4pt},
every outer x axis line/.append style={stealth-stealth},
title={},
xlabel={daily vending machine sales}]
\addplot [only marks, black, mark=*, mark size=2pt] coordinates{(8, 1)(10, 1)(11, 1)(11, 2)(11, 3)(12, 1)(12, 2)(12, 3)(12, 4)(12, 5)(13, 1)(13, 2)(14, 1)(18, 1)};
\end{axis}
\end{tikzpicture}
\end{document}