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CQE Sample Questions Answers

Questions 4

What is the standard deviation of the values below?

4.5, 5.1, 6.2, 2.1, 3.9

Options:

A.

1.136

B.

2.087

C.

1.362

D.

1.522

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Questions 5

What is the probability of an item failing in less than 5 hours if it has a constant failure rate of 1/hour?

Options:

A.

0.00674

B.

0.99127

C.

0.99326

D.

0.99642

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Questions 6

Which table should be used to determine a confidence interval on the mean when standard deviation is NOT known and the sample size is 10?

Options:

A.

z

B.

t

C.

F

D.

Chi-Square

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Questions 7

Which of the following is NOT a statistical level of measurement?

Options:

A.

Ordinal.

B.

Nominal.

C.

Numerical.

D.

Ratio.

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Questions 8

A two-way analysis of variance has r levels for one variable and c levels for the second variable with 2 observations per cell. The degree of freedom for interaction is

Options:

A.

2(r)(c)

B.

(r-1)(c-1)

C.

rc-1

D.

2(r-1)(c-1)

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Questions 9

Consider the following statement:

"A defect which might affect the appearance or general function of essential parts"

This definition describes a seriousness classification described as

Options:

A.

Incidental.

B.

Critical.

C.

Minor.

D.

Major.

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Questions 10

What percentage of the area under the standard normal curve is included within (+/-) 1.5 standard deviations from 0?

Options:

A.

0.8664

B.

0.7500

C.

0.6680

D.

0.9332

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Questions 11

Which of the following is a valid null hypothesis?

Options:

A.

p > 1/8

B.

μ < 98

C.

The mean of population A is not equal to the mean of population B

D.

mu = 110

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Questions 12

When using a control chart, a point plotting within the limits on the chart is

Options:

A.

The equivalent of type I error.

B.

The equivalent of type II error.

C.

The equivalent of accepting the hypothesis that the process is in control.

D.

The equivalent of not rejecting the hypothesis that the process is in control.

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Questions 13

The ideal results of a quality training effort would NOT include which of the following?

Options:

A.

Increased cost-of-quality results.

B.

Improved working methods and morale.

C.

Increased productivity and job satisfaction.

D.

Reduced defects and employee turn-over.

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Questions 14

The critical value of the t-distribution is

Options:

A.

Always greater than the critical value of the normal distribution.

B.

Always less than the critical value of the normal distribution.

C.

Not related to the critical value of the normal distribution.

D.

Approaches the critical value of the normal distribution as the degrees of freedom increase.

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Questions 15

Which of the following is the BEST statement to make regarding the relationship between product precision and product production?

Options:

A.

With too little precision, production costs increase.

B.

With too much precision, production costs increase.

C.

Precision costs and performance are related.

D.

With little precision, performance will improve.

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Questions 16

Which of the following control charts are more efficient than an X-bar chart at detecting small shifts in the mean?

Ⅰ. CUSUM.

Ⅱ. EWQR.

Ⅲ. EWMA.

Options:

A.

I only

B.

IIonly

C.

IIIonly

D.

I andIIIonly

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Questions 17

The expression below is which of the following?

Options:

A.

General term for the Poisson distribution.

B.

General term for the Pascal distribution.

C.

General term for the binomial distribution.

D.

General term for the hypergeometric distribution.

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Questions 18

The "least squares method" is used in

Options:

A.

The central limit theorem

B.

Calculating σ2

C.

Calculatingσ2and s2

D.

Calculating a best fit regression line.

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Questions 19

Normally, complaint data for both a product or service organization should provide

Options:

A.

An indication of the organizational areas creating the most problems.

B.

The degree or extent of customers dissatisfaction.

C.

The appropriate corrective action to take.

D.

The total quality costs for the organization.

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Questions 20

Which of the following actions or techniques is MOST useful in determining the original fundamental cause of a product or process nonconformance?

Options:

A.

Continuous improvement.

B.

Pareto analysis.

C.

Root cause analysis.

D.

Preventive action.

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Questions 21

You have been asked to sample a lot of 500 units from vendor whose past quality has been about 2% defective. A sample of 40 pieces is drawn from the lot and you have been told to reject the lot if you find two or more parts defective. What is the probability of finding two or more parts defective?

Options:

A.

0.953

B.

0.809

C.

0.191

D.

0.047

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Questions 22

In order to implement a continuous improvement strategy, a company may institute a steering committee or improvement council. Which of the following would generally NOT be a task performed by this council?

Options:

A.

The development of a quality vision for the company.

B.

The combined development and implementation of the company improvement strategy.

C.

The definition of certain quality objectives for sections of the company.

D.

The development of quality education and communication modules for the organization.

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Questions 23

The example of a supplier's quality management effort to meet your existing contractual requirements is MOST like

Ⅰ. A product audit.

Ⅱ. A process audit.

Ⅲ. A system audit.

Options:

A.

IIonly

B.

IIIonly

C.

I andIIonly

D.

I,IIandIII

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Questions 24

Measurement gaging is preferable to go, no-go gaging of a quality characteristic because

Options:

A.

It is more scientific.

B.

It provides the most information per piece inspected.

C.

It requires greater skills.

D.

It requires a larger sample than go, no-go gaging does.

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Questions 25

If the probability of a success on a single trial is 0.2 and 3 trials are performed, what is the probability of at least one success?

Options:

A.

0.008

B.

0.384

C.

0.488

D.

0.600

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Questions 26

Which of the following would be the MOST important considerations when establishing inspection points within a production operation?

Ⅰ. Inspection to prevent defects from entering the system.

Ⅱ. Inspection after all operations (both manual and automated).

Ⅲ. Inspection prior to a painting or masking operation.

Options:

A.

I only

B.

I andIIonly

C.

I andIIIonly

D.

I,IIandIII

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Questions 27

Writing and establishing process control procedures is

Options:

A.

Disposition.

B.

Notification.

C.

Preventive action.

D.

Corrective action.

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Questions 28

An X-bar chart has shown control for a long time. You see that points for the last 50 samples are all very near the center line on the chart. In fact, they are all within one sigma of the center line. This probably indicates that

Options:

A.

It is a desirable situation.

B.

It is an undesirable situation.

C.

The process standard deviation has decreased during the time the last 50 samples were taken.

D.

The control charts are incorrectly computed.

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Questions 29

Of the problem solving categories below, what is the usual sequence?

1. Select a problem needing improvement.

2. Collect data.

3. Implement the solution.

4. Determine if project is appropriate.

5. Study current procedures.

6. Determine candidates for data collection.

7. Analyze data.

8. Solve the problem.

Options:

A.

1, 4, 5, 6, 3, 8, 2, 7

B.

1, 5, 4, 6, 2, 7, 8, 3

C.

1, 5, 6, 2, 4, 8, 7, 3

D.

4, 1, 5, 6, 2, 7, 8, 3

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Questions 30

Which of the following parties, traditionally initiates an audit?

Options:

A.

The client.

B.

The plant manager.

C.

The lead auditor.

D.

The auditee.

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Questions 31

Which of the following would be considered the WEAKEST reason to initiate an audit?

Options:

A.

To compare actual practice to a defined standard.

B.

Follow-up on corrective action.

C.

Identify the root cause of a recent problem.

D.

Verify that a quality system continues to meet requirements.

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Questions 32

If a distribution is skewed to the left, the median will always be

Options:

A.

Less than the mean.

B.

Between the mean and the mode.

C.

Greater than the mode.

D.

An average of the mean and the mode.

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Questions 33

The following measurements for a sample with dimension X are representative of a process known to be in statistical control

42, 52, 64, 45, 53, 56, 70, 57, 49, 62

Which of the following values BEST approximates the upper and lower control limits of the process capability.

Options:

A.

81 and 29

B.

59 and 51

C.

64 and 46

D.

70 and 42

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Questions 34

According to Tchebysheff's theorem what % of measurements must lie within 2.5 standard deviations of the mean?

Options:

A.

3/4

B.

8/9

C.

0.840

D.

0.625

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Questions 35

Reliability prediction is

Ⅰ. The process of performance estimation.

Ⅱ. The process of estimating the probability that a product will perform its intended function for a stated time.

Ⅲ. The process of telling "how you can get there from here".

Options:

A.

I only

B.

IIonly

C.

IIandIIIonly

D.

I,IIandIII

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Questions 36

The sample size for a product quality audit should be

Options:

A.

Based on ANSI/ASQ Z1.4.

B.

Based on the lot size.

C.

A stated percentage of production.

D.

A very small quantity of product.

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Questions 37

A product failure in the customer's hands is bad for the company. Why do only 4% of the customers normally file a complaint?

Options:

A.

The product guarantee takes care of the product.

B.

A warranty is in place on the product.

C.

It is a minor inconvenience.

D.

They don't think it will do any good.

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Questions 38

The design function which assigns probability of failures between components or subsystems is called

Options:

A.

Apportionment.

B.

Significance

C.

Confidence.

D.

Qualification.

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Questions 39

Which of the following are likely to be positive actions in obtaining a supplier's commitment to quality improvement?

Ⅰ. Involving the supplier early in the product development stage.

Ⅱ. Partially reimbursing the supplier, when the product is rejected.

Ⅲ. Establishing a firm schedule of required product quantities and dates.

Ⅳ. Providing meaningful and timely quality performance feedback.

Options:

A.

IandIVonly

B.

I,IIandIVonly

C.

I,IIIandIVonly

D.

I,II,IIIandIV

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Questions 40

In most cases, an improvement team facilitator will NOT normally:

Options:

A.

Be familiar with problem solving techniques.

B.

Provide feedback to the group.

C.

Function as the group leader.

D.

Summarize key ideas generated by the group.

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Questions 41

If a sample size of 16 yields an average of 12 and standard deviation of 3, estimate the 95% confidence interval for the population (assume a normal distribution).

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Questions 42

Which of the following is the BEST method to developing materials for a training program on the gaps in performance?

Options:

A.

Secure a workshop trainer.

B.

Review a record of activities.

C.

Set up a one shot case study.

D.

Allocate employees for training.

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Questions 43

Which of the following are the MOST logical reasons for providing source inspection?

Ⅰ. The supplier has consistently shown poor out-going quality.

Ⅱ. The key inspection points are hidden after assembly at the suppliers' plant.

Ⅲ. The supplier requests the inspection to save them potential shipping expenses.

Ⅳ. The criticality of the product warrants it.

Options:

A.

I,IIandIVonly

B.

IIandIVonly

C.

II,IIIandIVonly

D.

I,II,IIIandIV

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Questions 44

During the performance of an audit, which of the following are key considerations?

Ⅰ. What sampling plans may be necessary?

Ⅱ. Is the audit schedule progressing as planned?

Ⅲ. Is there a need for a technical specialist?

Ⅳ. Is the level of compliance satisfactory?

Options:

A.

I,IIandIIIonly

B.

IIandIVonly

C.

I andIVonly

D.

I,II,IIIandIV

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Questions 45

A single sampling plan calls for a sample size of 80 with an acceptance number of five and a rejection number of six If the quality of the submitted lots 10 percent defective. then the percent of lots expected to be accepted in the long run is approximately.

Options:

A.

6%

B.

10%

C.

20%

D.

30%

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Questions 46

Applications for surface plate includes which of the following?

Ⅰ. Referencing plane for length measurements.

Ⅱ. Referencing plane for parallelism measurements.

Ⅲ. Establishing a datum plane for dimensional layout.

Ⅳ. Waiting place for delicate parts.

Ⅴ. Keeping extra gages when not in use.

Options:

A.

I andIIonly

B.

I andIVonly

C.

I,IIandIIIonly

D.

IIIand V only

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Questions 47

Findings and observations are audit terms. The best relationship between these terms is which of the following?

Options:

A.

Observations are broader in scope than findings.

B.

Observations are seen; findings are discovered.

C.

Observations generally support findings.

D.

Findings are reported in writing, observations are reported verbally.

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Questions 48

Typically Pareto diagrams are used for which of the following reasons?

Ⅰ. To display the significant few categories.

Ⅱ. To compliment attribute data charting.

Ⅲ. To eliminate insignificant categories.

Ⅳ. To focus attention in priority order.

Options:

A.

I andIIIonly

B.

I,IIandIIIonly

C.

II,IIIandIVonly

D.

I,II,IIIandIV

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Exam Code: CQE
Exam Name: Certified Quality Engineer
Last Update: May 23, 2024
Questions: 160
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