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OPMT CH 10
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Terms in this set (9)
Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?
mean
standard deviation
range
variance
proportion
proportion
The greater the volume of the process being targeted for inspection, the more attractive __________ inspection is.
controlled
automated
periodic
monitored
variable
automated
Approving the effort that occurs during the production process is known as acceptance sampling.
True
False
False
If a process is only being affected by common cause variation we can say the process is
not capable.
capable.
in a state of statistical control.
out of control.
in a state of statistical control.
The range chart (R-chart) is most likely to detect a change in:
variability.
proportion.
sample size.
mean.
number defective.
variability.
The optimum level of inspection occurs when we catch at least 98.6 percent of the defects.
True
False
f
Quality control, in contrast to quality assurance, is implemented:
before inspection.
after production.
by top management.
during production.
by self-directed teams.
during production.
The probability of concluding that assignable variation exists when only random variation is present is:
(I) the probability of a Type I error.
(II) known as the alpha risk.
(III) highly unlikely.
(IV) the sum of probabilities in the two tails of the normal distribution.
124
A control chart in which assignable variation is present is said to be
capable.
not capable, but in control.
in a state of statistical control.
out of control.
out of control.
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