Instruction 19-5
The director of the MBA program of a university wanted to know if a one week orientation would change the proportion among potential incoming students who would perceive the program as being good. Given below is the result from 215 students' view of the program before and after the orientation.
After the Orientation
$$\begin{array} { | c | c | c | c | }
\hline \text { Before the Orientation } & \text { Good } & \text { Not Good } & \text { Total } \
\hline \text { Good } & 93 & 37 & 130 \
\hline \text { Not Good } & 71 & 14 & 85 \
\hline \text { Total } & 164 & 51 & 215 \
\hline
\end{array}$$
-Referring to Instruction 19-5,the Friedman rank test is valid only if there is no interaction between the five blocks and the three treatment levels.

Question

Instruction 19-5
The director of the MBA program of a university wanted to know if a one week orientation would change the proportion among potential incoming students who would perceive the program as being good. Given below is the result from 215 students' view of the program before and after the orientation.
After the Orientation
 $$\begin{array} { | c | c | c | c | } 
\hline \text { Before the Orientation } & \text { Good } & \text { Not Good } & \text { Total } \
\hline \text { Good } & 93 & 37 & 130 \
\hline \text { Not Good } & 71 & 14 & 85 \
\hline \text { Total } & 164 & 51 & 215 \
\hline
\end{array}$$
-Referring to Instruction 19-5,the Friedman rank test is valid only if there is no interaction between the five blocks and the three treatment levels.

Quizplus · Accepted Answer

The Friedman rank test assumes no interaction between the treatment levels and the blocks. Therefore, if there is interaction present, the test may not be valid. The question statement indicates no information about the presence of interaction, so we can assume there is none and the test is valid.

Instruction 19-5 the Director of the MBA Program of a University

Instruction 19-5
the Director of the MBA Program of a University