Bas 340 exam 2 questions with verified
answers graded A+
Histograms and Process study - correct answer ✔✔
the formal approach requires what - correct answer ✔✔t test if prob of t is below 0.05 then the
diff is statistically significant
observed variation in regards to precision is denoted as what - correct answer ✔✔MR/1.128
AND OR RBAR/D2
what are the 2 components of variance - correct answer ✔✔within variation and between
changing process variation and process average can do what in regards to specs - correct answer
✔✔decreasing process variation may cause curve to be out of specs may also have to change
process average
Reproducibility define - correct answer ✔✔state of control on precision and accuracy
the diff between what i should have got and what i actually got when measuring is - correct
answer ✔✔measurement bias/accuracy
acurately measure - correct answer ✔✔accurate on average I got the known value which is
what I should have got
Is there a relationship between state of control and distribution of x - correct answer ✔✔No
, In control processes the distribution could be... - correct answer ✔✔can be normally
distributed, or have a distribution with any other conceivable shape
out of control process does have a distribution yes or no - correct answer ✔✔no but can
generate histograms of individual values with any conceivable shape (including mound-shaped).
histograms from out of control process change? - correct answer ✔✔yes, Histograms from out
of control processes will, over time, change shape, center, spread, or any combination of these
three things.
Histograms from out of control processes can be very........ - correct answer ✔✔misleading
Many times (but not always) the distribution of the measurements from an in-control process is
approximately normally distributed. t/f - correct answer ✔✔t
JMP will provide estimates of process i.e. percent outside of specs estimates in a process that is
out of control and what is your job - correct answer ✔✔Yes it does this it is your job to realize
not to use this estimate of the process if the process is out of control. as those estimates
assume normality and jmp will provide the estimate even if normality is not met so its up to u to
realize to not accept it.
Define capability analysis - correct answer ✔✔describes how well a process could or is meeting
specifications is known as
to estimate percent out of specs what must happen - correct answer ✔✔process must be in
control and and normally distirbuted
what conditions must be met for capability analysis to be useful - correct answer ✔✔Processes
should be in statistical control.
answers graded A+
Histograms and Process study - correct answer ✔✔
the formal approach requires what - correct answer ✔✔t test if prob of t is below 0.05 then the
diff is statistically significant
observed variation in regards to precision is denoted as what - correct answer ✔✔MR/1.128
AND OR RBAR/D2
what are the 2 components of variance - correct answer ✔✔within variation and between
changing process variation and process average can do what in regards to specs - correct answer
✔✔decreasing process variation may cause curve to be out of specs may also have to change
process average
Reproducibility define - correct answer ✔✔state of control on precision and accuracy
the diff between what i should have got and what i actually got when measuring is - correct
answer ✔✔measurement bias/accuracy
acurately measure - correct answer ✔✔accurate on average I got the known value which is
what I should have got
Is there a relationship between state of control and distribution of x - correct answer ✔✔No
, In control processes the distribution could be... - correct answer ✔✔can be normally
distributed, or have a distribution with any other conceivable shape
out of control process does have a distribution yes or no - correct answer ✔✔no but can
generate histograms of individual values with any conceivable shape (including mound-shaped).
histograms from out of control process change? - correct answer ✔✔yes, Histograms from out
of control processes will, over time, change shape, center, spread, or any combination of these
three things.
Histograms from out of control processes can be very........ - correct answer ✔✔misleading
Many times (but not always) the distribution of the measurements from an in-control process is
approximately normally distributed. t/f - correct answer ✔✔t
JMP will provide estimates of process i.e. percent outside of specs estimates in a process that is
out of control and what is your job - correct answer ✔✔Yes it does this it is your job to realize
not to use this estimate of the process if the process is out of control. as those estimates
assume normality and jmp will provide the estimate even if normality is not met so its up to u to
realize to not accept it.
Define capability analysis - correct answer ✔✔describes how well a process could or is meeting
specifications is known as
to estimate percent out of specs what must happen - correct answer ✔✔process must be in
control and and normally distirbuted
what conditions must be met for capability analysis to be useful - correct answer ✔✔Processes
should be in statistical control.
