TABLE 12-13
According to an article in Marketing News, fewer checks are being written at grocery store checkout stands than in the past. To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.
$$\begin{array}{l}
\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad Year }\
\begin{array} { c | c | c | c }
\text { Check Written } & \text { Year 1 } & \text { Year 2 } & \text { par 3 } \
\hline \text { Yes } & 225 & 175 & 125 \
\text { No } & 275 & 325 & 375
\end{array}
\end{array}$$
-Referring to Table 12-13, what are the degrees of freedom of the test statistic?

Question

TABLE 12-13
According to an article in Marketing News, fewer checks are being written at grocery store checkout stands than in the past. To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.
 $$\begin{array}{l}
\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad Year }\
\begin{array} { c | c | c | c } 
\text { Check Written } & \text { Year 1 } & \text { Year 2 } & \text { par 3 } \
\hline \text { Yes } & 225 & 175 & 125 \
\text { No } & 275 & 325 & 375
\end{array}
\end{array}$$
-Referring to Table 12-13, what are the degrees of freedom of the test statistic?

Quizplus · Accepted Answer

The Answer of TABLE 12-13
According to an article in Marketing News, fewer checks are being written at grocery store checkout stands than in the past. To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.
 $$\begin{array}{l}
\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad Year }\
\begin{array} { c | c | c | c } 
\text { Check Written } & \text { Year 1 } & \text { Year 2 } & \text { par 3 } \
\hline \text { Yes } & 225 & 175 & 125 \
\text { No } & 275 & 325 & 375
\end{array}
\end{array}$$
-Referring to Table 12-13, what are the degrees of freedom of the test statistic?

TABLE 12-13 According to an Article in Marketing News, Fewer

TABLE 12-13
According to an Article in Marketing News, Fewer