Final Exam - Chapter 16

Question 1

What is quality control?

Answer 1

Ensure goods and services conform to specifications and meets customer requirements by monitoring and measuring processes and making adjustments to meet performance.

Question 2

3 Components of quality control?

Answer 2

1. Performance standard or goal
2. Means of measuring performance
3. Comparison of actual vs standard to form basis for corrective action.

Question 3

Quality Source?

Answer 3

People responsible for work control quality and can stop the process of the source of the problem

Question 4

Supplier Certification Management?

Answer 4

Ensure conformance to requirements before value-adding in the first place

Question 5

In process Control

Answer 5

Ensure defective outputs do not leave the procFIniess and prevents defects in the first place Ex. While working it you control it checking on it at random times during WIP

Question 6

Finished good control(Acceptance assembling technique)

Answer 6

Verifies the product meets customer standards Ex.Technique based, end of day have 1000 units in assembly line, you check a sample and infer it to population. Either you accept units or reject based on sample size

Question 7

Prevent Sources of Errors

Answer 7

Mistakes in the first place using the poke yoke approach

Question 8

Customer satisfaction measurement

Answer 8

Responses that are tied directly to key business processes

Question 9

Statistical Process Control

Answer 9

A methodology for monitoring quality of manufacturing and service delivery processes to help identify and eliminate special/assignable causes of variation

Question 10

Common (Natural Cause Variation)

Answer 10

Test Question Result of complex interactions of variation in materials, tools, machines, info, workers, environment.

Question 11

What can eliminate common variation?

Answer 11

Nothing can eliminate common variation

Question 12

Special (Assignable) Variation

Answer 12

Arises from external sources that are not inherent in the process. Ex. Poorly Trained Workers, Machine out of adjustment

Question 13

Process in Control

Answer 13

Variation is normal

Question 14

Process out of control

Answer 14

Variation is too large (Time to stop the machine)

Question 15

Variable(Continuous Metric)

Answer 15

One that is calculated data that are measured on a continuous scale of measurement Ex. Cereal box size can measure 6.0 6.1 6.2

Question 16

Attribute (Discrete Metric)

Answer 16

Calculated from data that are measure on a binary scale of measurement Ex. Percentage of time on arrival? Yes or no question performance is on time arrival therefore attribute

Question 17

Statistical Process Control

Answer 17

Technique that involves testing a random sample of output from a process in order to detect if non random changes in the process are occurring ex. Used to monitor and see if you have assignable variation. Its a prevention technique

Question 18

How many control charts for variable?

Answer 18

Need to use X^bar and R Chart Together

Question 19

X^ chart

Answer 19

Average/Mean chart, measures central tendency

Question 20

R Chart

Answer 20

Range chart, measures dispersion ex. average scores of R chart- How many passed? How many failed? Those are control charts for variables

Question 21

P chart

Answer 21

Chart for attribute Use p chart to find out proportion defective

Question 22

C chart

Answer 22

Defects per unit

Question 23

What does it mean when a process is in statistical control?

Answer 23

It means it only has common natural variation. It does not have any assignable variation

Question 24

Cpk question should you accept order or not

Answer 24

If Cpk= 1, then barely meets specs. If CPK< 1 the process does not meet.

Question 25

what type of measure (variable or attribute)

On time variable

Answer 25

Discrete variable