The Chair of the Operations Management Department at Quality University wants to construct a p-chart for determining whether the four instructors teaching the basic P/OM course are under control with regard to the number of students who fail the course.Accordingly,he sampled 100 final grades from last year for each instructor,with the following results: What is the estimate of the mean proportion of failures,(p̅)for these instructors?
A).10
B).11
C).13
D).16
E).40

Question

The Chair of the Operations Management Department at Quality University wants to construct a p-chart for determining whether the four instructors teaching the basic P/OM course are under control with regard to the number of students who fail the course.Accordingly,he sampled 100 final grades from last year for each instructor,with the following results:  What is the estimate of the mean proportion of failures,(p̅)for these instructors?
A).10 
B).11 
C).13 
D).16 
E).40

Quizplus · Accepted Answer

The Answer of The Chair of the Operations Management Department at Quality University wants to construct a p-chart for determining whether the four instructors teaching the basic P/OM course are under control with regard to the number of students who fail the course.Accordingly,he sampled 100 final grades from last year for each instructor,with the following results:  What is the estimate of the mean proportion of failures,(p̅)for these instructors?
A).10 
B).11 
C).13 
D).16 
E).40