Question 14.
Which of the following 8 signs of special cause variation is
most indicative of a large shift of a process average?
Test 2 Seven points above or below the centerline
_____________
Test 8 – Eight points in a row on both sides of the centerline
with none in zone C _____________
Test 1 – one point beyond zone
A
_____________________
Test 4 Fourteen points in a row alternating up and
down
_____________________
Any of the
above
_____________________
None of the
above
_____________________
Question 15.
Which of the following 8 signs of special cause variation may be
due to a bimodal distribution of the process data:
Test 4 Fourteen points in a row alternating up and down.
_____________
Test 7 Fifteen points in a row in Zone
C
_____________
Test 8 Eight points in a row on both sides of the centerline
with none in zone C _____________
Any of the
above
_____________
None of the
above
_____________
Question 16.
Which of the 8 signs of special cause variation is commonly
referred to as a “run”?
Test 3 Six points in a row increasing or
decreasing
_____________
Test 2 Seven points in a row above or below the centerline.
_____________
Test 7 Fifteen points in a row in zone C.
_____________
Any of the
above
_____________
None of the
above
_____________
Question 17.
How would one deal with an attribute chart when the sample size
is inconsistent?
Use the average sample size.
_____________
Construct a control chart with control limits for each subgroup,
using its sample size. __________
Use a standard values
chart
_____________
Any of the
above
_____________
None of the
above
_____________
Question 18.
A P chart is used for:
controlling the count of nonconformities in a
product
_____________
controlling the proportion nonconforming in a sample or
subgroup.
_____________
cases where there are few opportunities for nonconformities to
occur
_____________
none of
these
_____________
Question 19.
A np chart is used for:
controlling the number of nonconforming of a sample or subgroup.
_____________
controlling the fraction nonconforming in a
lot
_____________
cases where there are few opportunities for a nonconformity to
occur
_____________
controlling the number nonconformities in an inspected unit.
_____________





