WGU C215 OPERATIONS MANAGEMENT TEST PAPER
2025/2026 QUESTIONS AND ANSWERS GUARANTEE A+
✔✔ISO 9001:2008 - ✔✔Quality Management Systems - Requirements - Certification of
a firm's quality management system; Demonstrates the conformity of quality
management systems to meet customer requirements
✔✔ISO 9004:2008 - ✔✔Quality Management Systems - Guidelines for Performance:
Provides guidelines for establishing a quality management system; Focuses not only on
meeting customer requirements but also on improving performance.
✔✔ISO 14000 - ✔✔A set of international standards and a certification focusing on a
company's environmental responsibility
✔✔ISO 14000 Management Systems - ✔✔Standards measure systems development
and integration of environmental responsibility into the overall business.
✔✔ISO 14000 Operations - ✔✔Standards include the measurement of consumption of
natural resources and energy
✔✔ISO 14000 Environmental Standards - ✔✔Measures emissions, effluents and other
waste systems
✔✔Competitive Evaluation - ✔✔On far right of relationship matrix; is an evaluation of
how the product compares to those of competitors
✔✔Product Characteristics - ✔✔On top of the relationship matrix; Technical measures
✔✔Relationship Matrix - ✔✔Strength of the relationship between customer
requirements and product characteristics
✔✔Trade-Off Matix - ✔✔The roof on the house; Shows how each product characteristic
is related to the others and allows to see changes to be made
✔✔Setting Targets - ✔✔Last step in house of quality is to evaluate competitors'
products relative to the specific product characteristics and to set new goals for own
product.
✔✔Statistical quality control (SQC) - ✔✔The set of statistical tools used by quality
professionals
✔✔Descriptive statistics - ✔✔Statistics used to describe quality characteristics and
relationships (mean; the standard deviation; the range and measure of the distribution
of data)
,✔✔Statistical process control (SPC) - ✔✔A statistical tool that involves inspecting a
random sample of the output from a process and deciding whether the process is
producing products with characteristics that fall within a predetermined range
✔✔Acceptance sample - ✔✔The process of randomly inspecting a sample of goods
and deciding whether to accept the entire lot based on the results
✔✔Common causes of variation - ✔✔Random causes that cannot be identified
✔✔Assignable causes of variation - ✔✔Causes that can be identified and eliminated
✔✔Mean (average) - ✔✔A statistic that measure the central tendency of a set of data.
✔✔Range - ✔✔The difference between the largest and smallest observations in a set of
data
✔✔standard deviation - ✔✔A statistic that measures the amount of data dispersion
around the mean
✔✔Control chart - ✔✔A graph that shows whether a sample of data falls within the
common or normal range of variation
✔✔Out of control - ✔✔The situation in which a plot of data falls outside preset control
limits
✔✔Type I Error (Control Charts) - ✔✔A value that falls outside the limits is due to
normal variation
✔✔Alpha risk - ✔✔See "Type I Error"
✔✔Variable (Control Charts) - ✔✔A product characteristic that can be measured and
has a continuum of values (i.e. height ,weight or valuable)
✔✔Attribute - ✔✔A product characteristic that has a discrete value and can be counted
(yes or no, color, taste or smell)
✔✔x-bar chart - ✔✔A control chart used to monitor changes in the mean value of a
process
✔✔Range (R) charts - ✔✔A control chart that monitors changes in the dispersion or
variability
✔✔P-Charts - ✔✔Measure the proportion of items in a sample that are defective
, ✔✔C-charts - ✔✔Count the actual number of defects
✔✔Process capability - ✔✔The ability of a production process to meet or exceed preset
specifications
✔✔Product specifications - ✔✔Preset ranges of acceptable quality characteristics
✔✔Process capability index - ✔✔An index used to measure process capability
✔✔Cp = 1 - ✔✔The process variability just meets specifications; process is minimally
capable
✔✔Cp < 1 - ✔✔The process variability is outside of specification and the process is not
capable of producing within specification and must be improved
✔✔Cp > 1 - ✔✔The process variability is tighter than specifications and the process
exceeds minimal capability
✔✔Cp shortcoming - ✔✔Assumes that process variability is centered on the
specification range
✔✔Six Sigma quality - ✔✔A high level of quality associated with approximately 3.4
defective parts per million
✔✔Sigma - ✔✔The number of standard deviations of the process
✔✔Six Sigma Black Belts - ✔✔Individuals who have extensive training in the use of
technical tools and are responsible for implementation of Six Sigma
✔✔Six Sigma Green Belts - ✔✔Individuals who have sufficient training in technical tools
to serve on teams or on small, individual
✔✔Acceptance sampling - ✔✔Randomly inspecting a certain number of items from a lot
or batch in order to decide whether to accept or reject the entire batch
✔✔Sampling plan - ✔✔A plan for acceptance sampling that precisely specifies the
parameters of the sampling process and the acceptance/rejection criteria
✔✔Single sampling - ✔✔A random sample is drawn from every lot
✔✔Doubling sampling - ✔✔Sample the lot a second time if the results of the first
sample are inconclusive
2025/2026 QUESTIONS AND ANSWERS GUARANTEE A+
✔✔ISO 9001:2008 - ✔✔Quality Management Systems - Requirements - Certification of
a firm's quality management system; Demonstrates the conformity of quality
management systems to meet customer requirements
✔✔ISO 9004:2008 - ✔✔Quality Management Systems - Guidelines for Performance:
Provides guidelines for establishing a quality management system; Focuses not only on
meeting customer requirements but also on improving performance.
✔✔ISO 14000 - ✔✔A set of international standards and a certification focusing on a
company's environmental responsibility
✔✔ISO 14000 Management Systems - ✔✔Standards measure systems development
and integration of environmental responsibility into the overall business.
✔✔ISO 14000 Operations - ✔✔Standards include the measurement of consumption of
natural resources and energy
✔✔ISO 14000 Environmental Standards - ✔✔Measures emissions, effluents and other
waste systems
✔✔Competitive Evaluation - ✔✔On far right of relationship matrix; is an evaluation of
how the product compares to those of competitors
✔✔Product Characteristics - ✔✔On top of the relationship matrix; Technical measures
✔✔Relationship Matrix - ✔✔Strength of the relationship between customer
requirements and product characteristics
✔✔Trade-Off Matix - ✔✔The roof on the house; Shows how each product characteristic
is related to the others and allows to see changes to be made
✔✔Setting Targets - ✔✔Last step in house of quality is to evaluate competitors'
products relative to the specific product characteristics and to set new goals for own
product.
✔✔Statistical quality control (SQC) - ✔✔The set of statistical tools used by quality
professionals
✔✔Descriptive statistics - ✔✔Statistics used to describe quality characteristics and
relationships (mean; the standard deviation; the range and measure of the distribution
of data)
,✔✔Statistical process control (SPC) - ✔✔A statistical tool that involves inspecting a
random sample of the output from a process and deciding whether the process is
producing products with characteristics that fall within a predetermined range
✔✔Acceptance sample - ✔✔The process of randomly inspecting a sample of goods
and deciding whether to accept the entire lot based on the results
✔✔Common causes of variation - ✔✔Random causes that cannot be identified
✔✔Assignable causes of variation - ✔✔Causes that can be identified and eliminated
✔✔Mean (average) - ✔✔A statistic that measure the central tendency of a set of data.
✔✔Range - ✔✔The difference between the largest and smallest observations in a set of
data
✔✔standard deviation - ✔✔A statistic that measures the amount of data dispersion
around the mean
✔✔Control chart - ✔✔A graph that shows whether a sample of data falls within the
common or normal range of variation
✔✔Out of control - ✔✔The situation in which a plot of data falls outside preset control
limits
✔✔Type I Error (Control Charts) - ✔✔A value that falls outside the limits is due to
normal variation
✔✔Alpha risk - ✔✔See "Type I Error"
✔✔Variable (Control Charts) - ✔✔A product characteristic that can be measured and
has a continuum of values (i.e. height ,weight or valuable)
✔✔Attribute - ✔✔A product characteristic that has a discrete value and can be counted
(yes or no, color, taste or smell)
✔✔x-bar chart - ✔✔A control chart used to monitor changes in the mean value of a
process
✔✔Range (R) charts - ✔✔A control chart that monitors changes in the dispersion or
variability
✔✔P-Charts - ✔✔Measure the proportion of items in a sample that are defective
, ✔✔C-charts - ✔✔Count the actual number of defects
✔✔Process capability - ✔✔The ability of a production process to meet or exceed preset
specifications
✔✔Product specifications - ✔✔Preset ranges of acceptable quality characteristics
✔✔Process capability index - ✔✔An index used to measure process capability
✔✔Cp = 1 - ✔✔The process variability just meets specifications; process is minimally
capable
✔✔Cp < 1 - ✔✔The process variability is outside of specification and the process is not
capable of producing within specification and must be improved
✔✔Cp > 1 - ✔✔The process variability is tighter than specifications and the process
exceeds minimal capability
✔✔Cp shortcoming - ✔✔Assumes that process variability is centered on the
specification range
✔✔Six Sigma quality - ✔✔A high level of quality associated with approximately 3.4
defective parts per million
✔✔Sigma - ✔✔The number of standard deviations of the process
✔✔Six Sigma Black Belts - ✔✔Individuals who have extensive training in the use of
technical tools and are responsible for implementation of Six Sigma
✔✔Six Sigma Green Belts - ✔✔Individuals who have sufficient training in technical tools
to serve on teams or on small, individual
✔✔Acceptance sampling - ✔✔Randomly inspecting a certain number of items from a lot
or batch in order to decide whether to accept or reject the entire batch
✔✔Sampling plan - ✔✔A plan for acceptance sampling that precisely specifies the
parameters of the sampling process and the acceptance/rejection criteria
✔✔Single sampling - ✔✔A random sample is drawn from every lot
✔✔Doubling sampling - ✔✔Sample the lot a second time if the results of the first
sample are inconclusive
