Chris Spencer edited Chapter 8.tex  almost 10 years ago

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\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?  \end{itemize}  If the evidence is not strong enough to reject the presumption of innocent, the jury returns with a verdict of "not guilty"  \begin{itemize}  \item The jury does not say that the defendant is innocent.  \item All it says is that there is not enough evidence to convict, to reject innocence.  \item The defendant may, in fact, be innocent, but the jury has no way to be sure.  \item Said statistically, we fail to reject the null hypothesis.  \item We never declare the null hypothesis to be true, because we simply do not know whether it's true or not.  \item Therefore we never“accept the null hypothesis”  \end{itemize}