The Following Table Shows the Average Weekly Losses of Worker

question 107

Essay

The following table shows the average weekly losses of worker hours due to accidents in 2009 at five randomly selected manufacturing firms in New South Wales and at five randomly selected manufacturing firms in Victoria. $$\begin{array} { | c | c | } \hline \text { NSW } & \text { Victoria } \\\hline 45 & 57 \\\hline 73 & 83 \\\hline 46 & 34 \\\hline 124 & 26 \\\hline 33 & 17 \\\hline\end{array}$$ Assume that the weekly losses of worker hours are normally distributed.
Perform an equal-variances t-test at the 5% significance level to determine whether the population means differ.

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