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\item Next we consider whether the data are consistent with this hypothesis.  \item If they are, all we can do is retain the hypothesis we started with. If they are not, then like a jury, we ask whether they are unlikely beyond a reasonable doubt.  \end{itemize}  \subection{A trial as a Hypothesis Test}  \begin{itemize}  \item Hypothesis testing is very much like a court trial  \item this doesnt prove the hypothesis but we can say that the data supports it  \item H_0:Defendant is innocent\\  Defendant is guility  \item We then present the evidence-collect data  \item Then we judge the evidence - “Could these data plausibly have happened by chance if the null hypothesis were true?  \item If they were very unlikely to have occurred, then the evidence raises more than a reasonable doubt in our minds about the null hypothesis.  \item Ultimately we must make a decision. How unlikely is unlikely?