COB 300 OPERATIONS EXAM #2
QUESTIONS & ANSWERS PASSED
ALREADY GRADED A+
quality control - correct answer ✔✔process that evaluates output relative to a standard and
takes corrective action when output doesn't meet standards
acceptance sampling - correct answer ✔✔approach to quality assurance where inspection is
done before/after production; least progressive approach
process control - correct answer ✔✔approach to quality assurance where inspection and
corrective action is done during production
continuous improvement - correct answer ✔✔approach to quality assurance where quality is
built into the process; most progressive approach
inspection - correct answer ✔✔appraisal of goods or services; used to provide information on
the degree to which items conform to a standard
low-cost, high-volume items (paper clips, roofing nails, wooden pencils) require: - correct
answer ✔✔little inspection because the cost associated with passing defective items is quite
low and the processes that produce these items are highly reliable so defects are rare
high-cost, low-volume items require: - correct answer ✔✔more intensive inspection;
automated inspection is an option that can be used
quality conformance - correct answer ✔✔product or service conforms to specifications
, statistical process control (SPC) - correct answer ✔✔statistical evaluation of the output of a
process; used to decide if a process is in control or if corrective action is needed
assignable variation - correct answer ✔✔in process output, a variation whose cause can be
identified; non-random variation
random variation - correct answer ✔✔natural variation in the output of a process, created by
countless minor factors; common variability (variations are so minor that it is unimportant to
attempt to eliminate them)
sampling distribution - correct answer ✔✔theoretical distribution of sample statistics; most
frequently used is normal distribution
central limit theorem - correct answer ✔✔distribution of sample averages tends to be normal
regardless of the shape of the process distribution
How is control achieved? - correct answer ✔✔by checking a portion of the goods or services,
comparing the results to a predetermined standard, evaluating departures from the standard,
taking corrective action when necessary, and following up to ensure that problems have been
corrected
control chart - correct answer ✔✔time-ordered plot of sample statistics, used to distinguish
between random and nonrandom variability; has upper and lower limits to define range of
acceptable variation from the sample statistic
control limits - correct answer ✔✔dividing lines between random and nonrandom deviations
from the mean of the distribution
QUESTIONS & ANSWERS PASSED
ALREADY GRADED A+
quality control - correct answer ✔✔process that evaluates output relative to a standard and
takes corrective action when output doesn't meet standards
acceptance sampling - correct answer ✔✔approach to quality assurance where inspection is
done before/after production; least progressive approach
process control - correct answer ✔✔approach to quality assurance where inspection and
corrective action is done during production
continuous improvement - correct answer ✔✔approach to quality assurance where quality is
built into the process; most progressive approach
inspection - correct answer ✔✔appraisal of goods or services; used to provide information on
the degree to which items conform to a standard
low-cost, high-volume items (paper clips, roofing nails, wooden pencils) require: - correct
answer ✔✔little inspection because the cost associated with passing defective items is quite
low and the processes that produce these items are highly reliable so defects are rare
high-cost, low-volume items require: - correct answer ✔✔more intensive inspection;
automated inspection is an option that can be used
quality conformance - correct answer ✔✔product or service conforms to specifications
, statistical process control (SPC) - correct answer ✔✔statistical evaluation of the output of a
process; used to decide if a process is in control or if corrective action is needed
assignable variation - correct answer ✔✔in process output, a variation whose cause can be
identified; non-random variation
random variation - correct answer ✔✔natural variation in the output of a process, created by
countless minor factors; common variability (variations are so minor that it is unimportant to
attempt to eliminate them)
sampling distribution - correct answer ✔✔theoretical distribution of sample statistics; most
frequently used is normal distribution
central limit theorem - correct answer ✔✔distribution of sample averages tends to be normal
regardless of the shape of the process distribution
How is control achieved? - correct answer ✔✔by checking a portion of the goods or services,
comparing the results to a predetermined standard, evaluating departures from the standard,
taking corrective action when necessary, and following up to ensure that problems have been
corrected
control chart - correct answer ✔✔time-ordered plot of sample statistics, used to distinguish
between random and nonrandom variability; has upper and lower limits to define range of
acceptable variation from the sample statistic
control limits - correct answer ✔✔dividing lines between random and nonrandom deviations
from the mean of the distribution
