WGU D469 SCRIPTED REVIEW & RESOLVED
QUESTIONS PASS CONFIRMED 2026.
◉ A car wash is using a process control chart to plot and monitor
service wait times to improve quality and customer satisfaction. An
upper and lower control limit of one standard deviation is being used
to detect out-of-control processes.
What is the percentage of normal probability used for the control
limits in this case? Answer: 68%
◉ A startup firm is launching a new online education service for kids
using the standard service design process. A detailed schedule for the
service launch across several sites has been completed.
Which type of service specification has been finalized? Answer:
Delivery
◉ A telecommunications company wants to monitor call drop rates to
improve the customer experience. It will use a statistical control chart
with an average drop rate of 3X and one sample standard deviation.
What are the control limits of the process control chart? Answer: 3X ±
σ
, ◉ An entertainment company wants to launch a service that requires
a very low amount of contact and interaction with its visitors. The
company wants to use the standard design process to build this
service.
Which employee skill set should the company use to ensure quality in
this service delivery? Answer: Technical skills
◉ A pharmaceutical plant wants to track the color of a key ingredient
using a control chart. This ingredient is procured from a vendor that
compares the product against the color standard. The sample points
from the latest consignment are exhibiting an out-of-control trend.
Which action should be taken to ensure product quality? Answer:
Investigate the latest consignment and do not use it for production
◉ An industrial chemical manufacturer wants to improve its quality
standards by tracking the moisture levels of raw materials using a
statistical control chart. The standard average moisture level is X
humidity units, and two sample standard deviations will be used.
What is the lower control limit of the chart? Answer: X - 2σ
◉ A hotel chain wants to enhance the customer experience by
upgrading its room facilities across its many locations.
QUESTIONS PASS CONFIRMED 2026.
◉ A car wash is using a process control chart to plot and monitor
service wait times to improve quality and customer satisfaction. An
upper and lower control limit of one standard deviation is being used
to detect out-of-control processes.
What is the percentage of normal probability used for the control
limits in this case? Answer: 68%
◉ A startup firm is launching a new online education service for kids
using the standard service design process. A detailed schedule for the
service launch across several sites has been completed.
Which type of service specification has been finalized? Answer:
Delivery
◉ A telecommunications company wants to monitor call drop rates to
improve the customer experience. It will use a statistical control chart
with an average drop rate of 3X and one sample standard deviation.
What are the control limits of the process control chart? Answer: 3X ±
σ
, ◉ An entertainment company wants to launch a service that requires
a very low amount of contact and interaction with its visitors. The
company wants to use the standard design process to build this
service.
Which employee skill set should the company use to ensure quality in
this service delivery? Answer: Technical skills
◉ A pharmaceutical plant wants to track the color of a key ingredient
using a control chart. This ingredient is procured from a vendor that
compares the product against the color standard. The sample points
from the latest consignment are exhibiting an out-of-control trend.
Which action should be taken to ensure product quality? Answer:
Investigate the latest consignment and do not use it for production
◉ An industrial chemical manufacturer wants to improve its quality
standards by tracking the moisture levels of raw materials using a
statistical control chart. The standard average moisture level is X
humidity units, and two sample standard deviations will be used.
What is the lower control limit of the chart? Answer: X - 2σ
◉ A hotel chain wants to enhance the customer experience by
upgrading its room facilities across its many locations.
