COMM-225-QUIZ-3-QUESTIONS WITH CORRECT ANSWERS 30 OUT 0F 30 SCORED () Concordia University
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Course
COMM 225
Institution
Concordia University (
)
COMM-225-QUIZ-3-QUESTIONS WITH CORRECT ANSWERS 30 OUT 0F 30 SCORED () Concordia University
Question 1
The quality control improvement tool which distinguishes between the "important few" and the "trivial many" is:
Select one:
a. Pareto analysis.
b. benchmarking.
c. cause-and-effect diagrams.
...
COMM-225-QUIZ-3-QUESTIONS WITH CORRECT ANSWERS 30 OUT 0F 30 SCORED
(2024-2025) Concordia University
Question 1
The quality control improvement tool which distinguishes between the "important few" and the "trivial many" is:
Select one:
a. Pareto analysis.
b. benchmarking.
c. cause-and-effect diagrams.
d. check sheets.
e. Process flow diagram.
Question 2
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, (p)p for these instructors?
Select one:
a. .11
b. .40
c. .16
d. .13
e. .10
Feedback
The correct answer is: .10
Question 3
A point which is outside of the lower control limit on an R-chart:
Select one:
a. should be investigated because it could indicate that an improved method has been used
b. is impossible because the lower limit is always zero
c. should be ignored unless another point is outside that limit
d. should be ignored because it signifies better average quality
e. is an indication that no cause of variation is present
Question 4
, 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
standard deviation of the sampling distribution for an instructor's sample proportion of failures?
Select one:
a. .03
b. .075
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