The Chair of the Operations Management Department at Quality University wants to construct a
p-chart for determining whether the four faculties 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:
Instructor Number of Failures
Prof A. 13
Prof B. 0
Prof C. 11
Prof D. 16
13. What are the .95 (5% risk of Type I error) upper and lower control limits for the p-chart?
A. .95 and .05
B. .13 and .07
C. .1588 and .0412
D. .16 and .04
E. .1774 and .0226
14. Using .95 control limits, (5% risk of Type I error), which instructor(s), if any, should he
conclude is (are) out of control?
A. none
B. Prof. B
C. Prof. D
D. both Prof. B and Prof. D
E. all
15. The specifications for a product are 6 mm
Solution
13. C
14. D
15. B
Thank You
Kindly rate the work.
The Chair of the Operations Management Department at Quality Univers.pdf
1. The Chair of the Operations Management Department at Quality University wants to construct a
p-chart for determining whether the four faculties 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:
Instructor Number of Failures
Prof A. 13
Prof B. 0
Prof C. 11
Prof D. 16
13. What are the .95 (5% risk of Type I error) upper and lower control limits for the p-chart?
A. .95 and .05
B. .13 and .07
C. .1588 and .0412
D. .16 and .04
E. .1774 and .0226
14. Using .95 control limits, (5% risk of Type I error), which instructor(s), if any, should he
conclude is (are) out of control?
A. none
B. Prof. B
C. Prof. D
D. both Prof. B and Prof. D
E. all
15. The specifications for a product are 6 mm
Solution
13. C
14. D
15. B
Thank You
Kindly rate the work
