السؤال #1

According to the Central Limit Theorem:

A. the median and the mean have the same value in a symmetric distribution

B. the mode of a normal distribution is also the mean

C. the mean of an exponential distribution is smaller than the median

D. the mean, median and mode of a normal distribution all have the same value

E. none of the above

عرض الإجابة

اجابة صحيحة: E

السؤال #2

Ideally, project team members should be representatives of

A. xperts in quality improvement

B. xperts in process management

C. orkers from areas affected by the project

D. orkers who have no vested interest in the project

عرض الإجابة

اجابة صحيحة: C

السؤال #3

The support for an important quality initiative was lacking in congress until Reagan’s Secretary of Commerce was killed in a horseback riding accident in 1987. That initiative was:

A. assigning National Institute for Standards and Technology (NIST) quality oversight duties

B. “consensus of the House” proclamation for Deming’s 14 points

C. changing National Bureau of Standards to NIST

D. authorizing the American National Standards Institute (ANSI) to join with the International Standards Organization (ISO) to promulgate standards

E. none of the above

عرض الإجابة

اجابة صحيحة: E

السؤال #4

Perform a risk analysis to determine the expected profit or (loss) from a project which has four possible disjoint outcomes: Outcome A shows a profit of $340,000 and has a probability of 0.25 Outcome B shows a profit of $120,000 and has a probability of 0.40 Outcome C shows a loss of $40,000 and has a probability of 0.10 Outcome D shows a profit of $100,000 and has a probability of 0.25

A. $130,000

B. $520,000

C. $154,000

D. ($168,000)

E. none of the above

عرض الإجابة

اجابة صحيحة: C

السؤال #5

One characteristic of attributes data is that it is always:Please choose the correct answer.

A. continuous

B. discrete

C. expensive to collect

D. read from a scale of measurement

عرض الإجابة

اجابة صحيحة: b

السؤال #6

Applying the theory of constraints during the DMAIC process would affect which of the following deliverables?

A. pdated FMEA

B. enchmark analysis

C. OE plan and results

D. mprovement strategy

عرض الإجابة

اجابة صحيحة: D

السؤال #7

A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are:

A. item, value

B. value, statistic

C. statistic, parameter

D. parameter, value

E. parameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #8

A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are:

A. item, value

B. value, statistic

C. statistic, parameter

D. parameter, value

E. parameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #9

For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a ___________ to display the data?

A. Individual Chart

B. C Chart

C. Xbar Chart

D. P Chart

عرض الإجابة

اجابة صحيحة: D

السؤال #10

Control Charts were developed by Dr. Shewhart to track data over time. To detect Special Cause variation the Control Charts use which of these?

A. Data shift analysis

B. Outlier analysis methods

C. Center Line and Control Limits

D. None of the above

عرض الإجابة

اجابة صحيحة: C

السؤال #11

A ___________ is used primarily to track the stability of the average value of a metric of interest.

A. P Chart

B. bar-R Chart

C. -MR Chart

D. Chart

عرض الإجابة

اجابة صحيحة: B

السؤال #12

A population of size 1,000,000 has mean 42 and standard deviation 6. Sixty random samples, each of size 15 are selected. According to the Central Limit Theorem the distribution of the sixty sample means has a mean of approximately:

A. 42

B. 42/6

C. 42/15

D. 42/ 15

E. none of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #13

Typically, which of the following actions is NOT used to reduce process cycle time?Please choose the correct answer.

A. Analyzing current processes

B. Reducing queue times

C. Setting scheduling priorities

D. Implementing activity-based costing

عرض الإجابة

اجابة صحيحة: d

السؤال #14

A random sample is selected from a population of measurements. The mean of the sample is not equal to the mean of the population. This is due to:

A. Type I error

B. Type II error

C. sampling error

D. the population is not normal

E. measurements were not exact

عرض الإجابة

اجابة صحيحة: C

السؤال #15

Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for the process?

A. Xbar Chart

B. Time Series Chart

C. Neither

D. Both

عرض الإجابة

اجابة صحيحة: A

السؤال #16

A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are:

A. item, value

B. value, statistic

C. statistic, parameter

D. parameter, value

E. parameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #17

The following is a set of individual measurements: 3 5 4 5 6 3 4 3 2 4 5 6 5 7 6 4 5 5 8 7 6 6 7 7 4 Find the control limits for the range chart.

A. none and 4

B. none and 5

C. 0

D. none of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #18

A random sample is selected from a population of measurements. The mean of the sample is not equal to the mean of the population. This is due to:

A. Type I error

B. Type II error

C. sampling error

D. the population is not normal

E. measurements were not exact

عرض الإجابة

اجابة صحيحة: C

السؤال #19

A random sample is selected from a population of measurements. The mean of the sample is not equal to the mean of the population. This is due to:

A. Type I error

B. Type II error

C. sampling error

D. the population is not normal

E. measurements were not exact

عرض الإجابة

اجابة صحيحة: C

السؤال #20

The management team in the above problem assigns each goal a numerical value designating its importance. The “bulls eyes,” circles and triangles are replaced by the values 3, 2 and 1 respectively. Entries are made in each box by multiplying the 3, 2 or 1 by the goal value. The importance of each activity is calculated by adding the entries in its row.

A. Affinity diagram

B. Inter-relationship digraph

C. Tree diagram

D. Process decision program chart

E. Matrix diagram

F. Prioritization matrix

عرض الإجابة

اجابة صحيحة: F

السؤال #21

If a process follows an exponential distribution with a mean of 25, what is the standard deviation for the process?Please choose the correct answer.

A. 0

B. 5

C. 12

D. 25

عرض الإجابة

اجابة صحيحة: d

السؤال #22

A project that lacks a clear definition of its scope and boundaries runs the risk of:

A. straying from the intended path

B. trying to solve unrelated problems

C. having difficulty in collecting baseline data

D. suffering morale problems

E. all the above

F. none of the above

عرض الإجابة

اجابة صحيحة: E

السؤال #23

What is the value of the test statistic?

A. A0

B. B1

C. C0

D. D3

E. Enone of the above

عرض الإجابة

اجابة صحيحة: D

السؤال #24

Which of the following control charts should a manufacturer use to measure the number of products rejected due to nonconformance?

A. mR chart

B. -s chart

C. chart

D. chart

عرض الإجابة

اجابة صحيحة: C

السؤال #25

A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are:

A. item, value

B. value, statistic

C. statistic, parameter

D. parameter, value

E. parameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #26

A management team lists nine goals across the top of a rectangle and 15 activity initiatives along the left hand side of the rectangle. If one of the activities strongly supports one of the goals a circle is placed in the box where that activity’s row intersects the goal’s column. If the activity’s support is very strong a “bulls eye” is placed in the box and if the support is weak a triangle is used. This best describes which problem solving tool?

A. Affinity diagram

B. Inter-relationship digraph

C. Tree diagram

D. Process decision program chart

E. Matrix diagram

F. Prioritization matrix

G. Activity network diagram

عرض الإجابة

اجابة صحيحة: E

السؤال #27

After a team has engaged in diversion activities they may need to employ a tool for conversion. Examples of such a tool are:I). nominal group techniqueII). multivotingIII). cause and effect diagramIV). activity network diagramV). matrix diagrams

A. III and IV

B. IV and V

C. II and III

D. I and II

عرض الإجابة

اجابة صحيحة: D

السؤال #28

A random sample is selected from a population of measurements. The mean of the sample is not equal to the mean of the population. This is due to:

A. Type I error

B. Type II error

C. sampling error

D. the population is not normal

E. measurements were not exact

عرض الإجابة

اجابة صحيحة: C

السؤال #29

A population of size 1,000,000 has mean 42 and standard deviation 6. Sixty random samples, each of size 15 are selected. According to the Central Limit Theorem the distribution of the sixty sample means has a mean of approximately:

A. 42

B. 42/6

C. 42/15

D. 42/ 15

E. none of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #30

For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a ___________ to display the data?

A. ndividual Chart

B. Chart

C. bar Chart

D. Chart

عرض الإجابة

اجابة صحيحة: D

السؤال #31

If the probability that event A occurs is 0.51, the probability that event B occurs is 0.64 and that probability that both A and B occur is 0.23 then:

A. Aevents A and B are complementary

B. Bevents A and B are mutually exclusive

C. Cevents A and B are supplementary

D. Devents A and B are not mutually exclusive

E. Eevents A and B are statistically independent

عرض الإجابة

اجابة صحيحة: D

السؤال #32

Deming called the technique of studying a sample to gain understanding of the distribution of a population an “enumerative study.” His main objection to these studies was:

A. they are too difficult to perform correctly

B. they require extensive use of computers

C. they assume a stable distribution

D. random samples are expensive to obtain

E. these studies have a high probability of Type II error

عرض الإجابة

اجابة صحيحة: C

السؤال #33

A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are:

A. item, value

B. value, statistic

C. statistic, parameter

D. parameter, value

E. parameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #34

A pharmaceutical manufacturer is designing an experiment to test four different capsule ingredients designed to reduce dissolution time. Each ingredient will be tested at 10 milligrams and 40 milligrams. A full factorial design is used with five replications per run. The number of levels, factors and runs is, respectively:

A. 2, 4, 16

B. 4, 5, 8

C. 10, 4, 40

D. 2, 20, 16

عرض الإجابة

اجابة صحيحة: A

السؤال #35

A population of size 1,000,000 has mean 42 and standard deviation 6. Sixty random samples, each of size 15 are selected. According to the Central Limit Theorem the distribution of the sixty sample means has a mean of approximately:

A. 42

B. 42/6

C. 42/15

D. 42/ 15

E. none of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #36

There are 14 different defects that can occur on a completed time card. The payroll department collects 328 cards and finds a total of 87 defects. DPMO =:

A. 87 ÷ 328

B. 87 ÷ (328 × 14)

C. 14 ÷ 87

D. 87 ÷ 14 × 1,000,000

E. 328 ÷ 87

F. 87 × 1,000,000 ÷ (14 × 328)

عرض الإجابة

اجابة صحيحة: F

السؤال #37

Common and ______________ Cause Variation are the focus of Statistical Process Control.

A. ncommon

B. rdinary

C. pecial

D. elective

عرض الإجابة

اجابة صحيحة: C

السؤال #38

The leader in the quality movement who recommended that organizations “eliminate numerical quotas for the work force and numerical goals for management.” :

A. Juran

B. Ishikawa

C. Crosby

D. Feigenbaum

E. Taguchi

F. none of the above

عرض الإجابة

اجابة صحيحة: F

السؤال #39

A random sample is selected from a population of measurements. The mean of the sample is not equal to the mean of the population. This is due to:

A. Type I error

B. Type II error

C. sampling error

D. the population is not normal

E. measurements were not exact

عرض الإجابة

اجابة صحيحة: C

السؤال #40

A quality leader who did extensive work with Japanese industry is:

A. Juran

B. Ishikawa

C. Deming

D. Ohno

E. Taguchi

F. all of the above

G. none of the above

عرض الإجابة

اجابة صحيحة: F

السؤال #41

A quality engineer employed by a hospital is asked to improve the process of medication storage in locked cabinets near patient doors. One defect that occurs rarely is that the medication caddy is left out when the cabinet is relocked. The engineer installs a gravity activated arm that will not permit the door to close when the caddy isn’t inside. This improvement is best described by which approach to problem solving?

A. 5S

B. Poka yoke

C. Kaizen

D. PDCA

E. Re-engineering

عرض الإجابة

اجابة صحيحة: B

السؤال #42

This table displays the inventory of fasteners in a storage cabinet. An item is selected at random from the fastener cabinet. Find the approximate probability it is size 3/4.

A. A

B. B

C. C

D. D

E. Enone of the above

عرض الإجابة

اجابة صحيحة: D

السؤال #43

A change agent is responsible for helping the organization do which of the following?Please choose the correct answer.

A. Overcome fear of the unknown

B. Reorganize departments

C. Determine performance criteria

D. Identify which group is responsible for failures

عرض الإجابة

اجابة صحيحة: a

السؤال #44

A population of size 1,000,000 has mean 42 and standard deviation 6. Sixty random samples, each of size 15 are selected. According to the Central Limit Theorem the distribution of the sixty sample means has a mean of approximately:

A. 42

B. 42/6

C. 42/15

D. 42/ 15

E. none of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #45

When a Belt Poka-Yokes a defect out of the process entirely then she should track the activity with a robust SPC system on the characteristic of interest in thedefect as an early warning system.

A. True

B. False

عرض الإجابة

اجابة صحيحة: B

السؤال #46

A population of size 1,000,000 has mean 42 and standard deviation 6. Sixty random samples, each of size 15 are selected. According to the Central Limit Theorem the distribution of the sixty sample means has a standard deviation of approximately:

A. 6

B. 6/42

C. 6/15

D. 6/ 15

E. none of the above

عرض الإجابة

اجابة صحيحة: D

السؤال #47

Following the completion of a LSS project the Belt not only creates a Control Plan he also develops a _____________ so those involved in the process know whatto do when the critical metrics move out of spec.

A. Response Plan

B. Call List

C. Chain-of-Command

D. Defect Analysis Plan

عرض الإجابة

اجابة صحيحة: A

السؤال #48

Common and ______________ Cause Variation are the focus of Statistical Process Control.

A. Uncommon

B. Ordinary

C. Special

D. Selective

عرض الإجابة

اجابة صحيحة: C

السؤال #49

A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are:

A. item, value

B. value, statistic

C. statistic, parameter

D. parameter, value

E. parameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #50

Range Charts are the technique used to determine if Special Causes are occurring within the subgroups of the ______________.

A. Histograms

B. SPC Charts

C. NP Charts

D. Pareto Charts

عرض الإجابة

اجابة صحيحة: B

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