TABLE 12-20
Data on the percentage of 200 hotels in each of the three large cities across the world on whether minibar charges are correctly posted at checkout are given below.
$\begin{array}{cccc}
\hline& \text { Hong Kong } & \text { New York } & \text { Paris } \
\hline\text { Yes } & 86 \% & 76 \% & 78 \% \
\text { No } & 14 \% & 24 \% & 22 \%\\hline
\end{array}$

At the 0.05 level of significance, you want to know if there is evidence of a difference in the proportion of hotels that correctly post minibar charges among the three cities.
-Referring to Table 12-20, the decision made suggests that the 3 cities all have different proportions of hotels that correctly post minibar charges.

Question

TABLE 12-20
 Data on the percentage of 200 hotels in each of the three large cities across the world on whether minibar charges are correctly posted at checkout are given below.
 $\begin{array}{cccc} 
\hline& \text { Hong Kong } & \text { New York } & \text { Paris } \
\hline\text { Yes } & 86 \% & 76 \% & 78 \% \
\text { No } & 14 \% & 24 \% & 22 \%\\hline
\end{array}$

At the 0.05 level of significance, you want to know if there is evidence of a difference in the proportion of hotels that correctly post minibar charges among the three cities.
-Referring to Table 12-20, the decision made suggests that the 3 cities all have different proportions of hotels that correctly post minibar charges.

Quizplus · Accepted Answer

The decision would require conducting a statistical test, such as a chi-square test for independence, to determine if there is a significant difference in proportions. The statement does not provide the results of such a test, so we cannot conclude that all three cities have different proportions based solely on the data provided.

TABLE 12-20 Data on the Percentage of 200 Hotels

TABLE 12-20
Data on the Percentage of 200 Hotels