Page 1 of 23
D469/ WGU D469 - QUALITY, CONTINUOUS
IMPROVEMENT AND LEAN SIX SIGMA EXAM NEWEST
2026 ACTUAL EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) ALL
ANSWERED {50 Q & A} ALREADY GRADED A+ |
BRAND NEW! | 100% GUARANTEED PASS | WGU
A glass manufacturing facility that produced defective products
wants to perform a root cause analysis to identify the potential
causes and meet its quality standards. Which technique can
help the company with this analysis?
A. Taguchi method
B. Fishbone diagram
C. Quality function deployment
D. Scatter diagram - ✔✔✔ Correct Answer > B. Fishbone diagram
A just-in-time (JIT) lean manufacture ask a supplier to provide
more frequent deliveries of small loads. What is the advantage
to the manufacture?
A. Lower ordering cost
B. Lower transportation cost
,Page 2 of 23
C. Reduction in inventory
D. Reduction per-piece prices - ✔✔✔ Correct Answer > C. Reduction
in inventory
A grocery retailer is using a p-chart to monitor its billing
accuracy to improve its vendor relations and overall quality
standards. It is using a sample size of 100 invoices with two
mistakes. Which sample points should be used in the control
chart?
A. The average number of mistakes over multiple samples
B. The number of mistakes in the sample
C. The range of mistakes in the sample
D. The proportion of mistakes in the sample - ✔✔✔ Correct Answer >
D. The proportion of mistakes in the sample
A new industrial equipment manufacturing company wants to
develop its quality management system and obtain International
Organization for Standardization recognition. Which certification
will help archive his goal?
A. ISO 9001
B. ISO 14001
C. ISO 37120
, Page 3 of 23
D. ISO 50001 - ✔✔✔ Correct Answer > A. ISO 9001
A car tire manufacturing plant wants to establish quality
standards by tracking the density of raw materials using a
statistical control chart. The average density is Z, and three
sample standard deviations will be used. What is the lower
control limit of the chart?
A. Z-3a
B. 2Z-3a
C. 3Z-a
D. Z-a - ✔✔✔ Correct Answer > A. Z-3a
A furniture maker wants to monitor the vibration of a
woodcutting tool using a statistical process chart. The sample
points are exhibiting an out-of-control trend that can diminish
the quality of its products. Which action should be taken to
bring the process under control?
A. Remove the outlier sample points
B. Inspect and fix the cause of the variation
C. Adjust the process average
D. Recalibrate the control limits - ✔✔✔ Correct Answer > B.
Inspect and fix the cause of the variation
D469/ WGU D469 - QUALITY, CONTINUOUS
IMPROVEMENT AND LEAN SIX SIGMA EXAM NEWEST
2026 ACTUAL EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) ALL
ANSWERED {50 Q & A} ALREADY GRADED A+ |
BRAND NEW! | 100% GUARANTEED PASS | WGU
A glass manufacturing facility that produced defective products
wants to perform a root cause analysis to identify the potential
causes and meet its quality standards. Which technique can
help the company with this analysis?
A. Taguchi method
B. Fishbone diagram
C. Quality function deployment
D. Scatter diagram - ✔✔✔ Correct Answer > B. Fishbone diagram
A just-in-time (JIT) lean manufacture ask a supplier to provide
more frequent deliveries of small loads. What is the advantage
to the manufacture?
A. Lower ordering cost
B. Lower transportation cost
,Page 2 of 23
C. Reduction in inventory
D. Reduction per-piece prices - ✔✔✔ Correct Answer > C. Reduction
in inventory
A grocery retailer is using a p-chart to monitor its billing
accuracy to improve its vendor relations and overall quality
standards. It is using a sample size of 100 invoices with two
mistakes. Which sample points should be used in the control
chart?
A. The average number of mistakes over multiple samples
B. The number of mistakes in the sample
C. The range of mistakes in the sample
D. The proportion of mistakes in the sample - ✔✔✔ Correct Answer >
D. The proportion of mistakes in the sample
A new industrial equipment manufacturing company wants to
develop its quality management system and obtain International
Organization for Standardization recognition. Which certification
will help archive his goal?
A. ISO 9001
B. ISO 14001
C. ISO 37120
, Page 3 of 23
D. ISO 50001 - ✔✔✔ Correct Answer > A. ISO 9001
A car tire manufacturing plant wants to establish quality
standards by tracking the density of raw materials using a
statistical control chart. The average density is Z, and three
sample standard deviations will be used. What is the lower
control limit of the chart?
A. Z-3a
B. 2Z-3a
C. 3Z-a
D. Z-a - ✔✔✔ Correct Answer > A. Z-3a
A furniture maker wants to monitor the vibration of a
woodcutting tool using a statistical process chart. The sample
points are exhibiting an out-of-control trend that can diminish
the quality of its products. Which action should be taken to
bring the process under control?
A. Remove the outlier sample points
B. Inspect and fix the cause of the variation
C. Adjust the process average
D. Recalibrate the control limits - ✔✔✔ Correct Answer > B.
Inspect and fix the cause of the variation
