how a process is varying over time as measurements are collected.
WGU C720 Objective Assessment 2026 Questions and Answers
Which two statistical process control (SPC) tools should the team use?
(Verified Answers)
Choose 2 answers
Cause-and-effect diagrams
Scatter diagrams
1. A company that produces motors uses the following check sheet: Histograms
Why would the company use this check sheet? Run charts
Check sheets
To create a control chart to measure the engine assembly process Pareto charts
To create a flow chart of the engine assembly process Control charts: Control charts
To develop a suppliers, inputs, process, outputs, customers (SIPOC) dia- Run charts
gram
To develop a Pareto chart identifying the root causes of engine defects: To 4. The CEO of a service company wants to change the strategy of the com-
develop a Pareto chart identifying the root causes of engine defects pany from volume sales to high-quality products.
2. Which aspect of quality is demonstrated by a vehicle that has a useful life Which philosophy should the CEO implement to emphasize quality over
of 165,000 miles? volume?
Performance Shewhart's variation reduction
Reliability
Features
Durability: Durability
3. A quality improvement team is trying to illustrate to upper management
,Deming's 14 points Students t-test
Ohno and Shingo's kaizen Statistical process control: Statistical process control
Taguchi's loss function: Deming's 14 points
7. A vice president of a major retailer is trying to reduce the wait time for
5. A company sells garage doors through a national retailer and contracts customers in the checkout line by appropriately opening checkout lines. To
with local installers to complete the installations. The operations manager do this, the VP needs to know the relationship and degree of correlation
is responsible for completing the installations in a 14-day period after the between monthly customer visits and area population.
sale. The company will be penalized financially if it fails to achieve these ob- Which tool should be used in this situation?
jectives. The operations manager's daily responsibilities include contacting Pareto chart
installers to expedite orders and ensure deadlines are met. Control chart
Scatter plot
Which two tools that should be used to measure installer performance? Histogram: Scatter plot
Choose 2 answers
Control charts to measure the time elapsed to completion
Fishbone diagram to chart the method, material, machine, and manpower
Gantt chart to measure how much performance has improved
Run charts to chart output around the 14-day central tendency: Control charts
to measure the time elapsed to completion
Run charts to chart output around the 14-day central tendency
6. Which quality tool examines patterns, flow, and causes of variation of data
points over time?
Quality function deployment
Cause-and-effect matrix
, 8. Which two company practices reflect the guiding principles of Six Sigma? per million products from a manufacturing company statistically.
Choose 2 answers
10. A company makes rulers that are designed to be 20 cm in length with
allowance ±0.1 cm.
A company tries to reduce variation in the quality of products it offers.
A company emphasizes the quality of suppliers because the quality of
If the actual length of a ruler is 20.2 cm, which factor will the company use
outputs are determined by the quality of inputs.
to judge the quality of the length of the rulers?
A company emphasizes the variety of suppliers because the variety of
outputs are determined by the variety of inputs.
Performance
A company tries to reduce the variety in the kinds of products it offers.: A
Features
company tries to reduce variation in the quality of products it offers.
Conformance
A company emphasizes the quality of suppliers because the quality of outputs are
Serviceability
determined by the quality of inputs.
Aesthetics: Conformance
9. 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.
There should be no more than 6.8 defects per million products from a
manufacturing company statistically.
There should be no more than 15% of defects per million products from a
manufacturing company statistically.
There should be no more than 10% of defects per million products from a
manufacturing company statistically.: There should be no more than 3.4 defects
WGU C720 Objective Assessment 2026 Questions and Answers
Which two statistical process control (SPC) tools should the team use?
(Verified Answers)
Choose 2 answers
Cause-and-effect diagrams
Scatter diagrams
1. A company that produces motors uses the following check sheet: Histograms
Why would the company use this check sheet? Run charts
Check sheets
To create a control chart to measure the engine assembly process Pareto charts
To create a flow chart of the engine assembly process Control charts: Control charts
To develop a suppliers, inputs, process, outputs, customers (SIPOC) dia- Run charts
gram
To develop a Pareto chart identifying the root causes of engine defects: To 4. The CEO of a service company wants to change the strategy of the com-
develop a Pareto chart identifying the root causes of engine defects pany from volume sales to high-quality products.
2. Which aspect of quality is demonstrated by a vehicle that has a useful life Which philosophy should the CEO implement to emphasize quality over
of 165,000 miles? volume?
Performance Shewhart's variation reduction
Reliability
Features
Durability: Durability
3. A quality improvement team is trying to illustrate to upper management
,Deming's 14 points Students t-test
Ohno and Shingo's kaizen Statistical process control: Statistical process control
Taguchi's loss function: Deming's 14 points
7. A vice president of a major retailer is trying to reduce the wait time for
5. A company sells garage doors through a national retailer and contracts customers in the checkout line by appropriately opening checkout lines. To
with local installers to complete the installations. The operations manager do this, the VP needs to know the relationship and degree of correlation
is responsible for completing the installations in a 14-day period after the between monthly customer visits and area population.
sale. The company will be penalized financially if it fails to achieve these ob- Which tool should be used in this situation?
jectives. The operations manager's daily responsibilities include contacting Pareto chart
installers to expedite orders and ensure deadlines are met. Control chart
Scatter plot
Which two tools that should be used to measure installer performance? Histogram: Scatter plot
Choose 2 answers
Control charts to measure the time elapsed to completion
Fishbone diagram to chart the method, material, machine, and manpower
Gantt chart to measure how much performance has improved
Run charts to chart output around the 14-day central tendency: Control charts
to measure the time elapsed to completion
Run charts to chart output around the 14-day central tendency
6. Which quality tool examines patterns, flow, and causes of variation of data
points over time?
Quality function deployment
Cause-and-effect matrix
, 8. Which two company practices reflect the guiding principles of Six Sigma? per million products from a manufacturing company statistically.
Choose 2 answers
10. A company makes rulers that are designed to be 20 cm in length with
allowance ±0.1 cm.
A company tries to reduce variation in the quality of products it offers.
A company emphasizes the quality of suppliers because the quality of
If the actual length of a ruler is 20.2 cm, which factor will the company use
outputs are determined by the quality of inputs.
to judge the quality of the length of the rulers?
A company emphasizes the variety of suppliers because the variety of
outputs are determined by the variety of inputs.
Performance
A company tries to reduce the variety in the kinds of products it offers.: A
Features
company tries to reduce variation in the quality of products it offers.
Conformance
A company emphasizes the quality of suppliers because the quality of outputs are
Serviceability
determined by the quality of inputs.
Aesthetics: Conformance
9. 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.
There should be no more than 6.8 defects per million products from a
manufacturing company statistically.
There should be no more than 15% of defects per million products from a
manufacturing company statistically.
There should be no more than 10% of defects per million products from a
manufacturing company statistically.: There should be no more than 3.4 defects
