C720 – WGU EXAM WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED
DETAILED ANSWERS|FREQUENTLY
TESTED QUESTIONS AND
SOLUTIONS|NEWEST|GUARANTEED
PASS 2026/2027
A quality improvement team is trying to illustrate to upper management how a process is varying over
time as measurements are collected.
Which two statistical process control (SPC) tools should the team use?
Run charts and Control charts
The CEO of a service company wants to change the strategy of the company from volume sales to high-
quality products.
Which philosophy should the CEO implement to emphasize quality over volume?
Deming's 14 points
A company sells garage doors through a national retailer and contracts with local installers to complete
the installations. The operations manager is responsible for completing the installations in a 14-day
period after the sale. The company will be penalized financially if it fails to achieve these objectives. The
operations manager's daily responsibilities include contacting installers to expedite orders and ensure
deadlines are met.
Which two tools should be used to measure installer performance?
Choose 2 answers
Control charts to measure the time elapsed to completion Run charts to chart output around the 14-day
central tendency
Which quality tool examines patterns, flow, and causes of variation of data points over time?
Statistical process control
A vice president of a major retailer is trying to reduce the wait time for customers in the checkout line
by appropriately opening checkout lines. To do this, the VP needs to know the relationship and degree
of correlation between monthly customer visits and area population.
Which tool should be used in this situation?
1|Page
, Scatter plot
Which two company practices reflect the guiding principles of Six Sigma?
Choose 2 answers
A company tries to reduce variation in the quality of products it offers.
A company emphasizes the quality of suppliers because the quality of outputs are determined by the
quality of inputs.
Six Sigma is adopted by a manufacturing company.
How can the company use Six Sigma to establish quality improvement?
There should be no more than 3.4 defects per million products from a manufacturing company
statistically.
A company makes rulers that are designed to be 20 cm in length with allowance ±0.1 cm.
If the actual length of a ruler is 20.2 cm, which factor will the company use to judge the quality of the
length of the rulers?
Conformance
Which quality management philosophy uses cause-and-effect fishbone diagrams for root-cause analysis,
emphasizes a bottom-up approach to quality, and considers standardization and quality control to move
together in improvement?
Ishikawa's quality circle
Which quality management philosophy assigns cost to quality, defines quality by how well a product can
be used for its intended purpose, and uses Pareto charts?
Juran Institute's management theory
A clothing retailer sends out evaluations to customers to rate quality as "outstanding," "good,"
"average," and "bad."
If the retailer wants to know the annual frequency of each evaluation category, which tool should the
retailer use?
Histogram
An appliance manufacturer has two factories located around the world, each with its own capacity:
• F1 can make 8 appliances per day.
• F2 can make 10 per day.
The factories can deliver to two different distribution centers. Every day each distribution center must
receive 9 appliances each.
2|Page
QUESTIONS AND VERIFIED
DETAILED ANSWERS|FREQUENTLY
TESTED QUESTIONS AND
SOLUTIONS|NEWEST|GUARANTEED
PASS 2026/2027
A quality improvement team is trying to illustrate to upper management how a process is varying over
time as measurements are collected.
Which two statistical process control (SPC) tools should the team use?
Run charts and Control charts
The CEO of a service company wants to change the strategy of the company from volume sales to high-
quality products.
Which philosophy should the CEO implement to emphasize quality over volume?
Deming's 14 points
A company sells garage doors through a national retailer and contracts with local installers to complete
the installations. The operations manager is responsible for completing the installations in a 14-day
period after the sale. The company will be penalized financially if it fails to achieve these objectives. The
operations manager's daily responsibilities include contacting installers to expedite orders and ensure
deadlines are met.
Which two tools should be used to measure installer performance?
Choose 2 answers
Control charts to measure the time elapsed to completion Run charts to chart output around the 14-day
central tendency
Which quality tool examines patterns, flow, and causes of variation of data points over time?
Statistical process control
A vice president of a major retailer is trying to reduce the wait time for customers in the checkout line
by appropriately opening checkout lines. To do this, the VP needs to know the relationship and degree
of correlation between monthly customer visits and area population.
Which tool should be used in this situation?
1|Page
, Scatter plot
Which two company practices reflect the guiding principles of Six Sigma?
Choose 2 answers
A company tries to reduce variation in the quality of products it offers.
A company emphasizes the quality of suppliers because the quality of outputs are determined by the
quality of inputs.
Six Sigma is adopted by a manufacturing company.
How can the company use Six Sigma to establish quality improvement?
There should be no more than 3.4 defects per million products from a manufacturing company
statistically.
A company makes rulers that are designed to be 20 cm in length with allowance ±0.1 cm.
If the actual length of a ruler is 20.2 cm, which factor will the company use to judge the quality of the
length of the rulers?
Conformance
Which quality management philosophy uses cause-and-effect fishbone diagrams for root-cause analysis,
emphasizes a bottom-up approach to quality, and considers standardization and quality control to move
together in improvement?
Ishikawa's quality circle
Which quality management philosophy assigns cost to quality, defines quality by how well a product can
be used for its intended purpose, and uses Pareto charts?
Juran Institute's management theory
A clothing retailer sends out evaluations to customers to rate quality as "outstanding," "good,"
"average," and "bad."
If the retailer wants to know the annual frequency of each evaluation category, which tool should the
retailer use?
Histogram
An appliance manufacturer has two factories located around the world, each with its own capacity:
• F1 can make 8 appliances per day.
• F2 can make 10 per day.
The factories can deliver to two different distribution centers. Every day each distribution center must
receive 9 appliances each.
2|Page
