السؤال #1

The primary metric for a project is reduced cost for process A . Baseline data might include:

A. urrent maintenance costs

B. urrent selling price for the products or services output by process A

C. urrent suggestions from stakeholders of process A

D. ll the above

E. one of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #2

A population is bimodal with a variance of 5.77. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The standard deviation of these sample means is approximately:

A.

B.

C.

D.

E.

عرض الإجابة

اجابة صحيحة: E

السؤال #3

If the probability that event A occurs is .51, the probability that event B occurs is .64 and events A and B are statistically independent then:

A. and B are mutually exclusive

B. he probability that both A and B occur is 0

C. and B can’t both occur

D. he probability that A occurs is 1-(probability that B occurs)

E. and B have different standard deviations

عرض الإجابة

اجابة صحيحة: B

السؤال #4

If the probability that an event will occur is 0.83, then the probability that the event will not occur is:

A.

B.

C.

D.

E. 3%

عرض الإجابة

اجابة صحيحة: A

السؤال #5

Find the upper control limit for a range chart if n = 4 and the average range is 2.282.

A. 2

B. 4

C. 5

D. 3

عرض الإجابة

اجابة صحيحة: C

السؤال #6

An x-bar control chart has been established with control limits of 3.245 and 3.257, n = 5. An engineer collects the following sample and plots the average on the control chart: 3.257, 3,256, 3. 258, 3.259

A. the process is out of control

B. the process is not out of control

C. the engineer misused the control chart

D. the control limits are incorrect

عرض الإجابة

اجابة صحيحة: C

السؤال #7

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. hey are too difficult to perform correctly

B. hey require extensive use of computers

C. hey assume a stable distribution

D. andom samples are expensive to obtain

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

عرض الإجابة

اجابة صحيحة: C

السؤال #8

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. A87 328

B. B87 (328 14)

C. C14 87

D. D87 14 1,000,000

E. E328 87

F. F87 1,000,000 (14 328)

عرض الإجابة

اجابة صحيحة: F

السؤال #9

A team's goal is to improve information flow in a payroll function. They make thirty-three Post-It notes, each listing an issue for further investigation. After some discussion, they group them into four categories: mandated record keeping, privacy concerns, insurance concerns and transfer concerns. This grouping process is best described by which approach to problem solving?

A. AAffinity diagram

B. BInter-relationship digraph

C. CTree diagram

D. DProcess decision program chart

E. EMatrix diagram

F. FPrioritization matrix

G. GActivity network diagram

عرض الإجابة

اجابة صحيحة: A

السؤال #10

TRIZ is an acronym which refers to:

A. a set of problem solving tools

B. an organization of quality professionals

C. an experiment using transitional results

D. a Russian general responsible for creative thinking

عرض الإجابة

اجابة صحيحة: A

السؤال #11

In an experimental design context, replication refers to:

A. duplicating experimental results at another location

B. repeating a test with the same factor levels

C. obtaining the same or similar results from different factors

D. repeating an experiment but using at least one different factor level

عرض الإجابة

اجابة صحيحة: C

السؤال #12

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

A. traying from the intended path

B. rying to solve unrelated problems

C. aving difficulty in collecting baseline data

D. uffering morale problems

E. ll the above

F. one of the above

عرض الإجابة

اجابة صحيحة: E

السؤال #13

A random sample of 2500 printed brochures is found to have a total of three ink splotches. The rate of ink splotches in PPM is:

A. A1,000,000 2500 3

B. B2500 1,000,000 3

C. C3 2500 1,000,000

D. D3 2500 1,000,000

عرض الإجابة

اجابة صحيحة: C

السؤال #14

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. 2

B. 2/6

C. 2/15

D. 2/ 15

E. one of the above

عرض الإجابة

اجابة صحيحة: A

السؤال #15

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. ype I error

B. ype II error

C. ampling error

D. he population is not normal

E. easurements were not exact

عرض الإجابة

اجابة صحيحة: C

السؤال #16

The primary metric for a project is reduced cost for process A .A consequential metric could be:

A. educed cycle time

B. educed scrap rate

C. educed set-up time

D. ll the above

E. one of the above

عرض الإجابة

اجابة صحيحة: D

السؤال #17

An automatic gaging system is to be installed in a process. The gage will insert data values into a data base from which machine adjustments will be made automatically. A critical factor in specifying the equipment is:

A. Acommunication link between gage and computer

B. Bcompatibility of software in the gage and in the computer

C. Cadequate manual over-rides

D. Dall of the above

عرض الإجابة

اجابة صحيحة: D

السؤال #18

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. vents A and B are complementary

B. vents A and B are mutually exclusive

C. vents A and B are supplementary

D. vents A and B are not mutually exclusive

E. vents A and B are statistically independent

عرض الإجابة

اجابة صحيحة: D

السؤال #19

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

A. tem, value

B. alue, statistic

C. tatistic, parameter

D. arameter, value

E. arameter, statistic

عرض الإجابة

اجابة صحيحة: C

السؤال #20

The quality leader most associated with the concept of robustness:

A. AJuran

B. BIshikawa

C. CCrosby

D. DFeigenbaum

E. ETaguchi

F. Fnone of the above

عرض الإجابة

اجابة صحيحة: E

السؤال #21

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.

B. /42

C. /15

D. / 15

E. one of the above

عرض الإجابة

اجابة صحيحة: D

السؤال #22

SCENARIO A Six Sigma team is measuring the moisture content of corn starch as it leaves the conveyer belt of a dryer. They collect one sample four cups of starch at times indicated in the chart at fixed locations labeled A, B, C, and D across the end of the belt. See the diagram below. Find the equation of the regression line for these sample data points: (1, 7) (3, 3) ( 3, 2) (5, --1)

A. Ay = 10

B. By = 12

C. Cy = 16 -- 3

D. Dy = 8

E. Ey = 22

عرض الإجابة

اجابة صحيحة: D

السؤال #23

According to the Central Limit Theorem:

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

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

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

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

E. one of the above

عرض الإجابة

اجابة صحيحة: E

السؤال #24

The term “expected value” is closest to the term:

A. edian

B. robabilistic model

C. ean

D. arkov value

E. egressive value

عرض الإجابة

اجابة صحيحة: C

السؤال #25

A population is bimodal. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The distribution of these sample means is:

A. imodal

B. pproximately exponential

C. pproximately Poisson

D. pproximately normal

E. pproximately uniform

عرض الإجابة

اجابة صحيحة: D

السؤال #26

A robust design is one which:

A. has high reliability

B. has low maintenance frequency

C. is simple to manufacture

D. is resistant to varying environmental conditions

عرض الإجابة

اجابة صحيحة: D

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