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 TABLE 12-8 \text { TABLE 12-8 } The Director of Transportation of a Large Company Is Interested

Question 2

Multiple Choice

 TABLE 12-8 \text { TABLE 12-8 } The director of transportation of a large company is interested in the usage of the company's van pool program. She surveyed 129 of her employees on the usage of the program before and after a campaign to convince her employees to use the service and obtained the following:
\quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad  Before \text { Before }
 Use  Do Not Use  Total  After  Use 274471 Do Not Use 332558 Total 6069129\begin{array}{l|l|c|c|l}\hline & & \text { Use } & \text { Do Not Use } & \text { Total } \\\hline \text { After } & \text { Use } & 27 & 44 & 71 \\\hline & \text { Do Not Use } & 33 & 25 & 58 \\\hline & \text { Total } & 60 & 69 & 129\end{array}

She will use this information to perform test using a level of significance of 0.05.
-Referring to Table 12-8, the director now wants to know if the proportion of employees who use the service before the campaign and the proportion of employees who use the service after the campaign are the same. Which test should she use?


A) Wilcoxon rank sum test
B) Z-test for difference in proportions
C) ?2-test for difference in proportions
D) McNemar test for difference in proportions

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