TABLE 12-19
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.
-True or False: Referring to Table 12-19,what should be the director's conclusion?
A)There is sufficient evidence that the proportion of potential incoming students who perceive the program as being good is the same before and after the orientation.
B)There is insufficient evidence that the proportion of potential incoming students who perceive the program as being good is the same before and after the orientation.
C)There is sufficient evidence that the proportion of potential incoming students who perceive the program as being good is not the same before and after the orientation.
D)There is insufficient evidence that the proportion of potential incoming students who perceive the program as being good is not the same before and after the orientation.

Question

TABLE 12-19
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. 
-True or False: Referring to Table 12-19,what should be the director's conclusion?
A)There is sufficient evidence that the proportion of potential incoming students who perceive the program as being good is the same before and after the orientation. 
B)There is insufficient evidence that the proportion of potential incoming students who perceive the program as being good is the same before and after the orientation. 
C)There is sufficient evidence that the proportion of potential incoming students who perceive the program as being good is not the same before and after the orientation. 
D)There is insufficient evidence that the proportion of potential incoming students who perceive the program as being good is not the same before and after the orientation.

Quizplus · Accepted Answer

The director's conclusion should be that there is sufficient evidence that the proportion of potential incoming students who perceive the program as being good is not the same before and after the orientation. This is because the p-value is less than 0.05, indicating that there is a significant difference between the two proportions. Additionally, the confidence interval for the difference in proportions does not include 0, further supporting the idea that there is a significant difference.

TABLE 12-19 The Director of the MBA Program of a State University