TABLE 12-17
the Director of the MBA Program of a State

question 113

Multiple Choice

TABLE 12-17
The director of the MBA program of a state 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.
$$\begin{array}{l}\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad After the Orientation }\\\begin{array} { l c c r } \text { Before the Orientation } & \text { Good } & \text { NotGood } & \text { Total } \\\hline\text { Good } & 93 & 37 & 130 \\\text { Not Good } & 71 & 14 & 85 \\\text { Total } & 164 & 51 & 215\end{array}\end{array}$$
-Referring to Table 12-17, which test should she use?

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

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Definitions:

≠ Symbol

A mathematical symbol denoting inequality, specifically that two values are not equal.

Null Hypothesis

A statistical premise asserting the absence of a relationship or impact between variables, tested to determine if an observed association is likely due to chance.

Directional

Refers to hypotheses in research that predict not only the existence of a relationship between variables but the direction of that relationship as well.

Non-directional

A type of hypothesis that does not specify the direction of the expected relationship between variables.