A Random Sample of 100 Employees from 5 Different Companies

Essay

A random sample of 100 employees from 5 different companies was randomly selected, and the number whotake public transportation to work was recorded. The results are listed below. Perform a homogeneity ofproportions test to test the claim that the proportion who take public transportation to work is the same in all 5companies. Use α = 0.01. $\begin{array} { l | c c c c c } &{ \text { Companies } } \\\hline & 1 & 2 & 3 & 4 & 5 \\\text { Use Public Trans. } & 18 & 25 & 12 & 33 & 22 \\\text { Don't Use Public Trans. } & 82 & 75 & 88 & 67 & 78\end{array}$