1.Question 1

A common cause is due to _____ whereas a special cause is considered _________

1 point

poor planning, an inherent part of the design

chance, assignable

non-inherent events, random chance

no training, inadequate supervision skills

2.Question 2

Individuals (X-chart) and Moving Range charts are best for all of the following except

1 point

low production rates

out of control processes

transaction processing

destructive testing

3.Question 3

If we see nine points on the same side of the centerline, this indicates that the central tendency of the process is

1 point

Trending

Stratifying

Drifting

Flirting

4.Question 4

Variables control charts are more sensitive than attributes charts and therefore more

1 point

Powerful

Confusing

Reliable

Complicated

5.Question 5

Sampling done in time order, by process is called

1 point

Instant-of-time method sampling

Cluster Sampling

Systematic sampling

Convenience Sampling

6.Question 6

The advantages of variables control charts include all the following except

1 point

Detailed data on the degree of the non-conformity

Smaller sample sizes

More information about causes for corrective action

reduced number of charts

7.Question 7

Control charts are easy to set, but very difficult to

1 point

Understand

Deploy

Use

Maintain

8.Question 8

Deming believed that _____ of all problems are due to special causes.

1 point

50%

15%

100%

85%

9.Question 9

Some typical signs that our process is out of control include all the following except

1 point

trends

flips

cycles

values outside the control limits

10.Question 10

P and np charts focus on proportion whereas c and u focus on the non-conformity itself

1 point

True

False