- Which of the following is not one of the three key measurements of the RPN number in a FMEA?
|
Severity |
|
|
Time |
|
|
Frequency |
|
|
Detection |
- What type of individual in the six sigma organization is responsible for managing larger portfolio type of projects?
|
Green Belt |
|
|
Project Champion |
|
|
Black Belt |
|
|
Yellow Belt |
- To reduce process throughput time, you might try which of the following actions?
|
Perform activities in parallel |
|
|
Change the sequence of activities |
|
|
Reduce interruptions |
|
|
Make sure bottlenecks stay working |
|
|
All of the above |
- What item below best describes process variation (standard deviation)?
|
Points not centrally located outside the mean |
|
|
A cluster of outcomes located at one central point |
|
|
How tightly all the various outcomes are clustered around a mean |
|
|
The overall calculated point cluster to the right of the mean |
5. The term used to best describe a short run performance of a process relative to a customer specification limit is called (which is a measure of defects per million)?
|
Cpk |
|
|
RPN |
|
|
PPk |
|
|
UCL/LCL |
- What type of control chart would be used to analyze rate of flow in a water pump?
|
Xbar R chart |
|
|
P chart |
|
|
U chart |
|
|
C chart |
- A poka yoke in a computer that is asks to auto save a file would reduce the score associated with what part of a FMEA process?
|
Severity |
|
|
Occurance |
|
|
Detection |
|
|
All of the above |
Use the attached FMEA process to answer the next 2 questions:
- Which of the following would be considered one of the key risk factors (identified x) for the attached process?
|
Step(s) in the Process |
Potential Failure Mode |
Failure Cause(s) |
Failure Effect(s) |
Severity (1-10) |
Probability of Occurrence (1-10) |
Existing Control(s) |
Probability of Detection (1-10) |
Risk Priority Number (RPN) |
Recommended Actions |
|
Fall assessment upon admission |
Fall |
Anethesia |
Potential injury |
10 |
1 |
1 |
10 |
Amublation assistance for the first 24 hours after admission |
|
|
No asssesment |
Lack of complete patient history information. |
Inaccurate fall risk assigned to patient |
8 |
2 |
2 |
32 |
Chart audits to assure admission evalution |
||
|
Incorrect fall assessment |
Fall |
Slip or trip due to wet floor, trip hazards, patient urgency. |
Potential Injury |
8 |
1 |
Patients assigned fall risk category |
1 |
8 |
|
|
Patient not identified as having a high fall risk |
Incorrect use of assessment |
Lack of fall interventions |
7 |
2 |
2 |
28 |
Training on fall assessment and prevention. Monitor falls to insure that risks and preventions are identified. |
||
|
Medication issues |
Over-medication |
Patients are admitted in an agitated state requiring stronger medication. |
Drowsiness leading to a fall |
8 |
3 |
2 |
48 |
Medication training to make clinicians aware of sedative potential of medications. Post alerts on patients with high medication. Include fall risk in shift assessment. |
|
|
Medications increase ataxia and/or drowsiness |
Medications have sedating and ataxic effects. |
Potential Injury |
9 |
8 |
2 |
144 |
Staff training on medication effects.Include fall risk in shift assessment. |
|
Slip or trip due to wet floor, trip hazards, patient urgency. |
|
|
Anethesia |
|
|
Potential Injury |
|
|
Medications have sedating and ataxic effects. |
- Which of the following would be considered the most damaging defect?
|
Lack of complete patient history information. |
|
|
Medications have sedating and ataxic effects. |
|
|
Patient not identified as having a high fall risk |
|
|
Fall |
- If we produce more than is needed by the next step in the process or more than the customer needs this is an example of which element of waste:
|
Overproduction |
|
|
Correction (defects) |
|
|
Overprocessing |
|
|
Conveyance |
- Specifying within Six Sigma change in performance comes from identifying and controlling:
|
KPIVs (x’s) |
|
|
KPOVs (Y’s) |
|
|
latent variables |
|
|
Transparent variables |
- A type of bar graph used to help prioritize processes:
|
Time Series Plot |
|
|
Process Alignment Graph |
|
|
Pareto Chart |
|
|
Process Elimination Chart |
- The underlying purpose of acceptance sampling is to:
|
determine whether to accept or reject a lot |
|
|
estimate the quality of the lot |
|
|
determine the defective items in a lot |
|
|
identify defective items in a lot for rework |
|
|
none of the above |
- For a symmetrical distribution, the appropriate statistic to describe the central tendency is?
|
Mean |
|
|
Median |
|
|
Standard Deviation |
|
|
Interquartile Range |
- Which of the following statements can be inferred from the chart and its corresponding trend line?
|
The average household paid roughly $211.30 more for their vehicle for each $1000 increase in annual income level |
|
|
A household with an annual income of $28,500 paid approximately $30,000 for their vehicle at that dealership |
|
|
The dealership expects households with annual incomes of $150,000 to pay $37,561 for their vehicle |
|
|
There is no causal relationship between household income and price |
|
|
none of the above |
- Use the information from quesiton 15
What is the slope coefficient ?
|
5866.3 |
|
|
.2113 |
|
|
.7659 |
|
|
R^2 |
- Use the information from quesiton 15 for you answer
For a family making 120,000 what value would we predict their price of their car?
|
25000 |
|
|
31222 |
|
|
5866.3 |
|
|
Unknown |
- From question 15 answer the following question
What does R^2 mean for this problem?
|
21 percent of all people will purchase a car |
|
|
Without income a family will still pay over $5000 for a car |
|
|
Income explains over 70% of the variance in car price |
|
|
Car price explains over 70% of the variance in Income |
- The tool that best measures risk in process/project management is?
|
Process Map |
|
|
Value Stream Map |
|
|
FMEA |
|
|
Cause and Effect Diagram |
Use the following information for the next 4 questions.
Rockness Recycling refurbishes rundown students. The process uses a moving belt which carries each student through the seven step process in sequence.
The seven steps are as follows
|
Step |
Description |
Time Required per Student |
|
1 |
Unpack and place on belt |
1.0 minutes |
|
2 |
Remove off bad habits |
1.0 minutes |
|
3 |
Scrub and clean mind |
0.8 minutes |
|
4 |
Insert modern methods |
1.5 minutes |
|
5 |
Polish and pack 10% defect rate |
1.2 minutes |
|
6 |
Inspection 10% failure – all failures leave the system |
0.8 minutes |
|
7 |
Shipping |
0.5 minutes |
One faculty member is assigned to each step. The system is on 40 hours a week, 8 hour days for 5 days. The process is currently full and in steady state.
- Which station is considered the bottleneck?
|
Unpack and place on belt |
|
|
Shipping |
|
|
Insert modern methods |
|
|
Inspection |
- The throughput time of the first unit (assuming the product is good) in the process is?
|
0.8 min |
|
|
1.5 min |
|
|
6.8 min |
|
|
Impossible to tell |
- The cycle time of the process is?
|
0.8 min |
|
|
1.5 min |
|
|
6.8 min |
|
|
13.6 min |
- In a 40 hour week (assuming steady state) how many good students could this system process(first pass)?
|
352 students |
|
|
317 students |
|
|
1600 students |
|
|
1444 students |
|
|
1296 students |
- What is the FPY (Rolled Throughput Yield) of the system?
|
95% |
|
|
5% |
|
|
81% |
|
|
Cannot tell from data |
- Interquartile Range is the difference between the 25th percentile and the 50th percentile.
True
False
- Which item below is NOT necessary to determine process capability for a process with a continuous output:
|
Shape of process data distribution (e.g. normal distribution) |
|
|
Process mean |
|
|
Process standard deviation |
|
|
Process control limits |
|
|
Specification limit or limits |
- What is the estimated probability of a process to give a result within +/- 3 standard deviations from the mean for a normally distributed process?
|
68.27% |
|
|
99.73% |
|
|
100% |
|
|
95.45% |
- What does Cp tell you? (Check all that apply)
|
What is possible if your process is perfectly centered |
|
|
Process capability for short run variance |
|
|
Overall Process Performance |
|
|
If your specs are too tight |
- A process with the following parameter exists (Mean = 20, standard deviation = 3, USL , LSL = 15)
What is CPK
|
1.0 |
|
|
.555 |
|
|
1.111 |
|
|
.833 |
- A process with the following parameter exists (Mean = 20, standard deviation = 3, USL , LSL = 15)
What is CP
|
1.0 |
|
|
.555 |
|
|
1.111 |
|
|
.833 |
A quality control engineer has completed a laboratory test on the time to failure of an electronic component. The following statistics summarize the results.
|
Time to failure (hours) |
|
|
Mean |
11,804 |
|
Median |
8,017 |
|
Q1, Q3 |
5,000 – 10,505 |
|
Standard Deviation |
4,870 |
|
IQR |
5,505 |
- In a non-symetrical process at what value would you get a positive outlier?
|
19027 |
|
|
13522 |
|
|
14610 |
|
|
26414 |
|
|
18,763 |
- If the mean in a test is 65 and the standard deviation is 5, it would be very unlikely (< 20%) to have a test score of over 70.
True
False
- Too much walking around in a company would be associated with what form of waste?
|
Motion |
|
|
Defects |
|
|
Over Processing |
|
|
Waiting |
- What type of control chart should be used to measure the amount of defects per unit?
|
X bar, R chart |
|
|
I-MR Chart |
|
|
P chart |
|
|
U Chart |
|
|
non-value added |
A computer manufacturer notes the number of defective items produced by an assembly line in Week 1 of a new process. These values are listed in the table below.
|
Sunday |
Monday |
Tuesday |
Wednesday |
Thursday |
Friday |
Saturday |
|
|
Week 1 |
15 |
21 |
12 |
16 |
22 |
18 |
16 |
- Assume that the exact same set of data repeats during Week 2. How will this additional data affect the standard deviation of the data set?
|
The standard deviation will be halved. |
|
|
The mean will double |
|
|
The standard deviation will be doubled |
|
|
The standard deviation will go down slightly |
- Which of the following tools do we use to create large number of ideas and sort into logical categories?
|
Inter relationship diagram |
|
|
Affinity Diagram |
|
|
Cause and Effect Diagram |
|
|
Tree Diagram |
- The equation that is used to describe six sigma is?
|
(x) |
|
|
(KPIV) |
|
|
Dependent = f(independent) |
|
|
all of the above |
- In bivariate analysis (scatterplots) the term we look at to examine the rate of change of the the independent variable relative to the dependent variable is?
|
Slope |
|
|
P Value |
|
|
R2 |
|
|
Sum of Squares |
- A CPk of your process is 1.3. This would indicate?
|
Process is in control |
|
|
Process is out of control |
|
|
Process is capable |
|
|
Process is not capable |
- In change management the most important individual in the change process is?
|
Project Champion |
|
|
Project Manager |
|
|
Team Members |
|
|
people who work in the process |
Use the following to answer the next three questions.
|
Performance |
Performance |
||
|
12 |
|||
|
14 |
Mean |
21.9 |
|
|
32 |
Median |
18.5 |
|
|
23 |
Std. Deviation |
13.08 |
|
|
18 |
IQR |
11.00 |
|
|
26 |
Mode |
n/a |
|
|
19 |
Skewness |
3.11 |
|
|
7 |
Kurtosis |
1.61 |
|
|
15 |
.25, .25 |
||
|
53 |
- The appropriate measure of center and spread is?
|
Mean and IQR |
|
|
Mean and Standard Deviaiton |
|
|
Median and IQR |
|
|
Median and Standard Deviation |
- Using the data above are their outliers in this dataset?
True
False
- What is the CV of the above dataset?
|
.59 |
|
|
.75 |
|
|
1.68 |
|
|
1.42 |
- Is the following process in control?
True
False
- The control chart most appropriate for plotting the daily percentage of students that wait longer than 5 minutes in line at the undergraduate admissions office is a?
|
c-chart |
|
|
p-chart |
|
|
Xbar, R Chart |
|
|
I-MR Chart |
|
|
Impossible to determine |
- The R2=.53 indicates?
|
This is a good model |
|
|
The model is significant |
|
|
The model is not significant |
|
|
53% of total variance is explained |
47. The type of diagram used to look at requirement gaps between our process and our customer needs is called a?
|
Cross Functional Flow Map |
|
|
Value Stream Map |
|
|
SIPOC-R Map |
|
|
Functional Process Map |
Use the following value stream map to answer the following 2 questions.
48. What is the total lead time for the entire process?
|
1 day |
|
|
3 days 1 minute |
|
|
1 minute |
|
|
3 days |
49. What is the FPQ for this problem?
|
95% |
|
|
81% |
|
|
50% |
|
|
83% |
50. What is the value for the multiple in this problem? (assuming a 24 hour day)
|
4321 |
|
|
3 |
|
|
.0002 |
|
|
72 |
