Instruction 15-8
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.
$$\begin{array} { | c | c | c | c | }
\hline & \text { Hong Kong } & \text { New York } & \text { Paris } \
\hline \text { Yes } & 86 \% & 65 \% & 78 \% \
\text { No } & 14 \% & 24 \% & 22 \% \
\hline
\end{array}$$ 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 Instruction 15-8,the decision made suggests that the three cities all have different proportions of hotels that correctly post minibar charges.

Question

Instruction 15-8
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.
 $$\begin{array} { | c | c | c | c | } 
\hline & \text { Hong Kong } & \text { New York } & \text { Paris } \
\hline \text { Yes } & 86 \% & 65 \% & 78 \% \
\text { No } & 14 \% & 24 \% & 22 \% \
\hline
\end{array}$$ 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 Instruction 15-8,the decision made suggests that the three cities all have different proportions of hotels that correctly post minibar charges.

Quizplus · Accepted Answer

The information provided does not directly indicate the statistical decision made regarding the differences in proportions among the three cities; it simply presents the data. To determine if there is a significant difference, a chi-square test or another appropriate statistical test would need to be conducted, and the outcome of that test would inform the decision.

Instruction 15-8 Data on the Percentage of 200 Hotels in Each

Instruction 15-8
Data on the Percentage of 200 Hotels in Each