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A Simple Random Sample of 150 People Was Taken to Investigate

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A simple random sample of 150 people was taken to investigate whether there is a link between smoking status and having had a tertiary education. Test at the 5% level of significance.  Non-smoker  Smoker  None-tertiary educated 4228 Terti ary educated 2357\begin{array} { | l | l | l | } \hline & \text { Non-smoker } & \text { Smoker } \\\hline \text { None-tertiary educated } & 42 & 28 \\\hline \text { Terti ary educated } & 23 & 57 \\\hline\end{array}

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