WGU C720 PA QUESTIONS AND
ANSWERS ALREADY PASSED
A company that produces motors uses the following check sheet:
Why would the company use this check sheet?
To create a control chart to measure the engine assembly process
To create a flow chart of the engine assembly process
To develop a suppliers, inputs, process, outputs, customers (SIPOC) diagram
To develop a Pareto chart identifying the root causes of engine defects ✔✔To develop a Pareto
chart identifying the root causes of engine defects
Which aspect of quality is demonstrated by a vehicle that has a useful life of 165,000 miles?
Performance
Reliability
Features
Durability ✔✔Durability
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?
Choose 2 answers
Cause-and-effect diagrams
Scatter diagrams
Histograms
Run charts
,Check sheets
Pareto charts
Control charts ✔✔Control charts
Run 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?
Shewhart's variation reduction
Deming's 14 points
Ohno and Shingo's kaizen
Taguchi's loss function ✔✔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 that should be used to measure installer performance?
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
, Which quality tool examines patterns, flow, and causes of variation of data points over time?
Quality function deployment
Cause-and-effect matrix
Students t-test
Statistical process control ✔✔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?
Pareto chart
Control chart
Scatter plot
Histogram ✔✔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.
A company emphasizes the variety of suppliers because the variety of outputs are determined by
the variety of inputs.
A company tries to reduce the variety in the kinds of products it offers. ✔✔A company tries to
reduce variation in the quality of products it offers.
ANSWERS ALREADY PASSED
A company that produces motors uses the following check sheet:
Why would the company use this check sheet?
To create a control chart to measure the engine assembly process
To create a flow chart of the engine assembly process
To develop a suppliers, inputs, process, outputs, customers (SIPOC) diagram
To develop a Pareto chart identifying the root causes of engine defects ✔✔To develop a Pareto
chart identifying the root causes of engine defects
Which aspect of quality is demonstrated by a vehicle that has a useful life of 165,000 miles?
Performance
Reliability
Features
Durability ✔✔Durability
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?
Choose 2 answers
Cause-and-effect diagrams
Scatter diagrams
Histograms
Run charts
,Check sheets
Pareto charts
Control charts ✔✔Control charts
Run 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?
Shewhart's variation reduction
Deming's 14 points
Ohno and Shingo's kaizen
Taguchi's loss function ✔✔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 that should be used to measure installer performance?
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
, Which quality tool examines patterns, flow, and causes of variation of data points over time?
Quality function deployment
Cause-and-effect matrix
Students t-test
Statistical process control ✔✔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?
Pareto chart
Control chart
Scatter plot
Histogram ✔✔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.
A company emphasizes the variety of suppliers because the variety of outputs are determined by
the variety of inputs.
A company tries to reduce the variety in the kinds of products it offers. ✔✔A company tries to
reduce variation in the quality of products it offers.
