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\item Therefore we never“accept the null hypothesis”  \end{itemize}  \subsection{How do we determine if H_0 is plausible?}  \begin{itemize}  \item In Statistics we can quantify our level of doubt.  \item How unlikely is it to get a random sample of 100 students where 42 have travelled abroad if in fact the true population proportion is 35%?  \item How unlikely is it to get a random sample of 100 students where 42 have travelled abroad if in fact the true population proportion is 35%?