2024/12/1 00:36 Week 5_Test Your Knowledge (TYK): PJM6135 71779 Project Quality Management SEC 14 Fall 2024 CPS [BOS-B-HY]
Week 5_Test Your Knowledge (TYK)
Due No due date
Points 100
Questions 10
Time Limit None
Allowed Attempts Unlimited
Instructions
This practice test covers weeks 1-5 course materials, which include an introduction to project quality
management, quality planning, quality plan implementation, quality control, process capability analysis,
statistical process control, and quality management systems. Each answer contains detailed
explanations to help you master the course materials. Take notes as you learn as the final exam will
cover week 1-week 6 course materials.
Test Parameters
Logistics: Online
Number of Questions: 10
Duration: 60 minutes
Possible points: 100 points
Questions Type: Fill in the blank, multiple choice, multiple answer, and matching
Question Delivery: One question at a time
Multiple Attempts: Unlimited
Force Completion: Once started, this Test must be completed in one sitting.
Due date: Sunday of the FIFTH week of the course
Take the Quiz Again
Attempt History
Attempt Time Score
LATEST Attempt 1 2 minutes 90 out of 100 *
* Some questions not yet graded
* Some questions not yet graded
Submitted Dec 1 at 12:35am
Question 1
10/ 10 pts
https://northeastern.instructure.com/courses/196393/quizzes/642868 117
,2024/12/1 00:36 Week 5 Test Your Knowledge (TYK): PUM6135 71779 Project Quality Management SEC 14 Fall 2024 CPS [BOS-B-HY]
At an electronic manufacturing company, the quality manager of a process improvement project
measures the weight of TV screens by weighing a sample of five randomly picked TV screens daily. The
manufacturing process is currently considered to be in control, with the standard deviation of sample
means equaling 0.45 inches. The results of the last four days are presented in the attached table.
PJM6135-Daily Samples From Machine A_weeks4-5.jpg
(https://northeastern.instructure.com/assessment_questions/329000/files/532277/download?
verifier=VEAdrilJvwRnIQQKOvaOtcX7KvM7djNzN8ofXAZT&wrap=1)
What are the upper control limit (UCL) and lower control limit (LCL) of the range chart? Round to the
nearest hundredth.
(1.53, 2.99)
Correct!
(0, 4.49)
(0, 3.69)
(2.13, 27.93)
UCL(R) = 4.49; LCL(R) = 0. Find the range for each day. The range is the maximum value minus the
minimum value. For example, the range for Day 1 is 28.91 -26.64 = 2.27. The ranges for Day 1 to Day 4
are 2.27, 1.72, 1.53, and 2.99, respectively. The average of the ranges R-bar = 2.13 inches. UCL(R) =
R-bar x D4, LCL(R) = R-bar x D3.
For a sample size of five, D4 = 2.11 and D3 = 0.
UCL(R) =2.13 x 2.11 = 4.49.
LCL(R)=2.13x0=0.
Question 2
10/ 10 pts
According to the customer’s specification given to the manufacturer, the length of a shoe should not
deviate from the correct size by more than 1 mm. In the manufacturing process, the standard deviation
of this length is 0.32 mm and the mean is equal to the correct size. Find the capability ratio of this
process for three standard deviations. Is this process capable?
0.52: no
https://northeastern.instructure.com/courses/196393/quizzes/642868 2/7
, 2024/12/1 00:36 Week 5 Test Your Knowledge (TYK): PUM6135 71779 Project Quality Management SEC 14 Fall 2024 CPS [BOS-B-HY]
0.52; yes
1.04; no
Correct!
1.04; yes
The capability ratio is calculated as the upper specification limit (USL) - the lower specification limit (LSL)
divided by 6 (sigma). The deviation from the correct size (mean) is 1 mm on each side. Cp = [(X-bar +1)
— (X-bar -1)]/6sigma = 2/(6 x 0.32) = 1.04 > 1, which indicates that the process is capable.
Question 3
10/ 10 pts
Small deviations from a target value that are acceptable in design specification are called .
Performance specifications
Correct!
Tolerances
Standard error
Defects
In most instances, small deviations from a target value are acceptable in the design specification. These
allowable deviations are called tolerances. For example, a luxury car might have an interior noise
specification (on a particular road surface and speed) of 70 £ 0.5 decibels. A car with a noise level
consistently at 70.4 decibels would have perfect conformance quality on this attribute. Performance
specifications are target levels of performance qualities decided upon at the design stage. A defect is an
error or significant deviation from specifications in a product or part.
Question 4
10 /10 pts
At an electronic manufacturing company, the quality manager of a process improvement project
measures the weight of TV screens by weighing a sample of five randomly picked TV screens daily. The
manufacturing process is currently considered to be in control, with the standard deviation of sample
means equaling 0.45 inches. The results of the last four days are presented in the attached table.
PJM6135 Weeks 4-5 Screens' Weights in Inches.jpg
(https://northeastern.instructure.com/assessment_questions/328994/files/532276/download?
https://northeastern.instructure.com/courses/196393/quizzes/642868 3/7
Week 5_Test Your Knowledge (TYK)
Due No due date
Points 100
Questions 10
Time Limit None
Allowed Attempts Unlimited
Instructions
This practice test covers weeks 1-5 course materials, which include an introduction to project quality
management, quality planning, quality plan implementation, quality control, process capability analysis,
statistical process control, and quality management systems. Each answer contains detailed
explanations to help you master the course materials. Take notes as you learn as the final exam will
cover week 1-week 6 course materials.
Test Parameters
Logistics: Online
Number of Questions: 10
Duration: 60 minutes
Possible points: 100 points
Questions Type: Fill in the blank, multiple choice, multiple answer, and matching
Question Delivery: One question at a time
Multiple Attempts: Unlimited
Force Completion: Once started, this Test must be completed in one sitting.
Due date: Sunday of the FIFTH week of the course
Take the Quiz Again
Attempt History
Attempt Time Score
LATEST Attempt 1 2 minutes 90 out of 100 *
* Some questions not yet graded
* Some questions not yet graded
Submitted Dec 1 at 12:35am
Question 1
10/ 10 pts
https://northeastern.instructure.com/courses/196393/quizzes/642868 117
,2024/12/1 00:36 Week 5 Test Your Knowledge (TYK): PUM6135 71779 Project Quality Management SEC 14 Fall 2024 CPS [BOS-B-HY]
At an electronic manufacturing company, the quality manager of a process improvement project
measures the weight of TV screens by weighing a sample of five randomly picked TV screens daily. The
manufacturing process is currently considered to be in control, with the standard deviation of sample
means equaling 0.45 inches. The results of the last four days are presented in the attached table.
PJM6135-Daily Samples From Machine A_weeks4-5.jpg
(https://northeastern.instructure.com/assessment_questions/329000/files/532277/download?
verifier=VEAdrilJvwRnIQQKOvaOtcX7KvM7djNzN8ofXAZT&wrap=1)
What are the upper control limit (UCL) and lower control limit (LCL) of the range chart? Round to the
nearest hundredth.
(1.53, 2.99)
Correct!
(0, 4.49)
(0, 3.69)
(2.13, 27.93)
UCL(R) = 4.49; LCL(R) = 0. Find the range for each day. The range is the maximum value minus the
minimum value. For example, the range for Day 1 is 28.91 -26.64 = 2.27. The ranges for Day 1 to Day 4
are 2.27, 1.72, 1.53, and 2.99, respectively. The average of the ranges R-bar = 2.13 inches. UCL(R) =
R-bar x D4, LCL(R) = R-bar x D3.
For a sample size of five, D4 = 2.11 and D3 = 0.
UCL(R) =2.13 x 2.11 = 4.49.
LCL(R)=2.13x0=0.
Question 2
10/ 10 pts
According to the customer’s specification given to the manufacturer, the length of a shoe should not
deviate from the correct size by more than 1 mm. In the manufacturing process, the standard deviation
of this length is 0.32 mm and the mean is equal to the correct size. Find the capability ratio of this
process for three standard deviations. Is this process capable?
0.52: no
https://northeastern.instructure.com/courses/196393/quizzes/642868 2/7
, 2024/12/1 00:36 Week 5 Test Your Knowledge (TYK): PUM6135 71779 Project Quality Management SEC 14 Fall 2024 CPS [BOS-B-HY]
0.52; yes
1.04; no
Correct!
1.04; yes
The capability ratio is calculated as the upper specification limit (USL) - the lower specification limit (LSL)
divided by 6 (sigma). The deviation from the correct size (mean) is 1 mm on each side. Cp = [(X-bar +1)
— (X-bar -1)]/6sigma = 2/(6 x 0.32) = 1.04 > 1, which indicates that the process is capable.
Question 3
10/ 10 pts
Small deviations from a target value that are acceptable in design specification are called .
Performance specifications
Correct!
Tolerances
Standard error
Defects
In most instances, small deviations from a target value are acceptable in the design specification. These
allowable deviations are called tolerances. For example, a luxury car might have an interior noise
specification (on a particular road surface and speed) of 70 £ 0.5 decibels. A car with a noise level
consistently at 70.4 decibels would have perfect conformance quality on this attribute. Performance
specifications are target levels of performance qualities decided upon at the design stage. A defect is an
error or significant deviation from specifications in a product or part.
Question 4
10 /10 pts
At an electronic manufacturing company, the quality manager of a process improvement project
measures the weight of TV screens by weighing a sample of five randomly picked TV screens daily. The
manufacturing process is currently considered to be in control, with the standard deviation of sample
means equaling 0.45 inches. The results of the last four days are presented in the attached table.
PJM6135 Weeks 4-5 Screens' Weights in Inches.jpg
(https://northeastern.instructure.com/assessment_questions/328994/files/532276/download?
https://northeastern.instructure.com/courses/196393/quizzes/642868 3/7
