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NEW QUESTION 1
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. DPU =
- A. 87 ÷ 328
- B. 87 ÷ (328 × 14)
- C. 14 ÷ 87
- D. 87 ÷ 14
- E. 328 ÷ 87
- F. 87 × 1,000,000 ÷ (14 × 328)
Answer: A
NEW QUESTION 2
A project whose definition does not include performance metrics:
- A. will typically be short term
- B. use statistical inference
- C. have a high risk of failure
- D. should not be approved
- E. none of the above
Answer: D
NEW QUESTION 3
The number of factors, levels and replications:
- A. 3, 3, 3
- B. 2, 3, 2
- C. 3, 2, 2,
- D. 3, 2, 3
- E. 2, 2, 2
- F. none of the above
Answer: D
NEW QUESTION 4
Approximately what percent of the data values are smaller than the mean?
- A. 25%
- B. 50%
- C. 75%
- D. it varies from 0% and 99+% inclusive
Answer: D
NEW QUESTION 5
Which value of x will minimize transmitted noise?
- A. X1
- B. X2
- C. X3
- D. X4
Answer: C
NEW QUESTION 6
A team studies a coil steel banding process and makes five changes resulting in productivity improvements of 2%, 2.8%, 2.4%, 2% and 3% respectively. These improvements are best described by which approach to problem solving?
- A. 5S
- B. Poka yoke
- C. Kaizen
- D. PDCA
- E. Re-engineering
Answer: C
NEW QUESTION 7
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
Answer: D
NEW QUESTION 8
If the value of the test statistic had been 7.03, what action should have been taken regarding the null hypothesis?
- A. rejected
- B. accepted
- C. not rejected
- D. none of the above
Answer: A
NEW QUESTION 9
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
Answer: C
NEW QUESTION 10
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. events A and B are complementary
- B. events A and B are mutually exclusive
- C. events A and B are supplementary
- D. events A and B are not mutually exclusive
- E. events A and B are statistically independent
Answer: D
NEW QUESTION 11
A team wants a technique for displaying the connection between various customer needs and various features on a product. They should use:
- A. written and diagrammed work instructions
- B. flow charts and process maps
- C. cause and effect diagrams
- D. Pareto chart
- E. relationship matrix
Answer: E
NEW QUESTION 12
The primary metric for a project is reduced cost for process A .A consequential metric could be:
- A. reduced cycle time
- B. reduced scrap rate
- C. reduced set-up time
- D. all the above
- E. none of the above
Answer: D
NEW QUESTION 13
Successful Six Sigma projects always:
- A. use designed experiments
- B. impact the bottom line of the enterprise
- C. are completed in a short time frame
- D. all of the above
- E. none of the above
Answer: B
NEW QUESTION 14
The average number of defects is 21.6. Find the upper control limit for the c-chart.
- A. 26.4
- B. 24.6
- C. 18.8
- D. 26.2
- E. none of the above
Answer: E
NEW QUESTION 15
Find the value of (13) in the ANOVA table. Assume:
- A. 16.4
- B. 3.2
- C. 18.6
- D. 23.2
- E. 4.54
- F. 12.2
- G. 0.525
- H. 2.82
- I. 1.48
- J. 35.4
- K. 0.10<P<1
- L. 0.05<P<0.10
- M. 0.01<P<0.05
- N. 0.005<P<0.01
- O. 0<P<0.005
Answer: G
NEW QUESTION 16
An advantage of using standard deviation rather than range for measuring dispersion of a large sample is that:
- A. standard deviation has a simpler formula
- B. calculators have a standard deviation key but not a range key
- C. standard deviation uses information from each measurement
- D. range calculations are not normally distributed
Answer: C
NEW QUESTION 17
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
Answer: B
NEW QUESTION 18
A process shows the following number of defects. Each sample size for this process is 85. 3 8 2 7 7 6 8 8 9 5 Find the control limits.
- A. none and 13.8
- B. 12.6 and 25.2
- C. none and 25.2
- D. none of the above
Answer: A
NEW QUESTION 19
At a particular time, three components are in parallel and each has a reliability of 0.98. What is the reliability of the system?
- A. 0.98
- B. 0.94
- C. 0.37
- D. 0.26
- E. none of the above
Answer: E
NEW QUESTION 20
An experiment has seven factors with two levels each. The experiment has eight runs. This experimental design is called:
- A. full factorial design
- B. half fractional factorial design
- C. interaction
- D. none of the above
Answer: D
NEW QUESTION 21
A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.Find the control limits for a median chart.
- A. 12.52 and 12.72
- B. 12.54 and 12.70
- C. 0.02 and 0.33
- D. none of the above
Answer: A
NEW QUESTION 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.
After some work on the dryer, additional data are collected which when plotted looks like this:
Which type of variation dominates?
- A. within sample
- B. sample to sample within the hour
- C. hour to hour
- D. none of the above
Answer: B
NEW QUESTION 23
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
Answer: C
NEW QUESTION 24
A team has been asked to reduce the occurrence of a particular defect. They begin by brainstorming all possible causes using a:
- A. matrix diagram
- B. cause and effect diagram
- C. process decision program chart
- D. affinity diagram
- E. activity network diagram
- F. tree diagram
- G. prioritization matrix
- H. matrix diagram
- I. interrelationship digraph
Answer: B
NEW QUESTION 25
If DPU = 0.022, the RTU is approximately:
- A. 0.022
- B. 0.078
- C. 0.0022
- D. 0.98
- E. 0.098
- F. 0.0098
Answer: D
NEW QUESTION 26
Find the mean, median and mode of the following data set: 9, 11, 12, 12, 14, 18, 18, 18, 20, 23:
- A. 15.5, 18, 18
- B. 15, 14, 18
- C. 14, 16, 18
- D. 15, 12, 18
- E. 15.5, 16, 18
Answer: E
NEW QUESTION 27
A process shows the following number of defects. Each sample size for this process is 85. 3 8 2 7 7 6 8 8 9 5
What control chart should be used?
- A. x-bar and R
- B. median
- C. individual and moving range
- D. p
- E. np
- F. c
- G. u
- H. none of the above
Answer: F
NEW QUESTION 28
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