Lean Six Sigma Green Belt - Questions And Answers

[answerhappygod]

What is the inference of “Process is in control” according to Walter Shewhart?
process has chance cause
The probability of a train arriving on time and leaving on time is 0.8. The probability of the same train arriving on time is 0.84. The probability of this train leaving on time is 0.86. Given the train arrived on time, what is the probability it will leave on time?
The solution to this problem involves conditional probability. The probability of event B occurring, given event A has occurred, is: Let event B be the probability the train leaves on time, and let event A be the probability of the train arriving on time. The intersection of events A and B is the probability of the train arriving and leaving on time. Thus, the probability of event B given event A has occurred is 0.8/0.84 = 0.9524. Option d is correct.
Which of the following is not an advantage of control charts?
They provide straightforward, easily interpreted information

In Six Sigma applications, Standard Deviation is referred to as difference from the:
mean
Which of the following quality tools is used to rank all categories, making apparent the vital few and the trivial many?
Pareto diagrams
A QFD diagram uses which of the following tools?
Relationship Matrix
Cancelling or nullifying suggestions or ideas is NOT a recommended practice in which of the tools:
Brainstorming
Which of the following pairs is the most useful in preparing control charts, when used together, for variables data?
X-bar and R
What is the principle reason One Factor Experiments are not chosen to work with?
They can miss interactions
Which of these tools/techniques represent "continuous improvement"?
Kaizen
Identify the post-improvement tool which would be most beneficial when generating fresh ideas after the results of an improvement process have been disappointing.
A post-improvement brainstorming session
In which of the following stages does the Team Leader acquire or play the role of a Coach?
Storming
What is said to be true when samples are drawn out of a population randomly?
The sampling distribution approaches normality with increase in sample size

What is the major weakness of the one factor at a time experimental strategy?
It fails to account for interactions between factors
What is the major weakness of the one factor at a time experimental strategy?
It fails to account for interactions between factors
Which of the following errors is typically associated with the notion, "False positive"
Type I error
For a process working at 4 Sigma levels, the Rolled Throughput Yield is
Using the Sigma-RTY Conversion table, the answer is 99.37%
In order to ensure data accuracy and integrity, which of the following should NOT be considered?
Remove data based on a firm hunch that it is false
What is the concept behind PDCA?
Continuous improvement
What is Lean philosophy?
Provide perfect value to the customer through a perfect value creation process that has zero waste
The opposite of an alpha risk in hypothesis testing is called:
Level of confidence
If the probability of a car starting on a cold morning is 0.6, and we have two such cars. What is the probability of at least one of the cars starting on a cold morning?
This question can be solved by using additive law of probability:(A u B)= P(A)+P(B)-P(A ∩ B)(A u B)= 0.6 + 0.6 - (0.6*0.6) = 1.2 - 0.36 = 0.84 So option a is the correct answer.
Which is the preferred measure of central tendency for data on Ordinal scale?
Median
Which of the tools listed below can and should be used in conjunction with the Project Charter?
RACI Matrix
What is the definition of Inventory type of waste?
Any supply in excess to process requirements necessary to produce goods or services just-in-time
For a process working at 4 Sigma level, how many opportunities per million are considered to lie outside of the specification limits provided by the customer?
A 4 Sigma process has a total of 6210 defects, thus option b is correct.
For incorporating desired attributes into the earliest stages of product design, which technique out of the following is the most effective?
QFD
Variable control chart subgroup sizes are generally 3, 4, 5, or 6 for all of the following reasons EXCEPT:
They fit onto traditional chart paper very well
What does OEE stand for?
Overall Equipment Effectiveness
The process operating conditions are given below. Process Input Quality Parts Re-worked Process A: 100, 80, 5 Process B: 85, 70, 6 Process C: 76, 60, 4 The Rolled Throughput Yield is:
52%
All the factors that might contribute to a production problem must be discovered. Which among the following problem-solving tools might be the best choice?
Fishbone diagrams
Machines A & B have been showing disparate efficiency and defects per unit rates despite similar variation in quality at purchase time. If the mean squares between the 2 machines is 250 and the mean square from each machine is 100, what is the value of FSTAT (F-Statistics)?
2.5
When selecting and scaling the process input variables for a DOE , which of the following is NOT a desirable approach?
Combine process measurement responses when possible
Statistical quality control techniques are an application of:
Probability theory
The least useful measurement scale is
Nominal
To simplify the planning and scheduling of large and complex projects, which of the project management tools should be used by the Six Sigma team?
PERT
The most important statistical objective of conducting Regression Analysis is:
To represent the relationship with the help of a Best fit line
In which of the stages does a Team Leader play a supervisory role?
Performing
Who should complete the control phase after the successful completion and implementation of the first four phases of DMAIC?
The complete team is the most desirable option.
An ANOVA is the usual test for experiments including many treatments at different levels. The main reason to use ANOVA for significance testing is:
Equality of sample means can be tested by comparing sample variances
Poka-yoke is best defined as:
preventing controllable defects
In the Define Phase, which of these tools would you use as an immediate precursor to the Project Charter?
SIPOC Map
In which of the following stages do normally a lot of conflicts arise?
Storming
A team of six sigma has reached the control stage of DMAIC. They have successfully reduced fabric critical stains from 73 to 1 per fabric roll. Now what type of control chart should the team recommend?
A control chart based on the Poisson distribution such as the u chart
For a data list having outliers, which measure of dispersion works best?
Range
What is more appropriate definition of Non-Value-Add Activity?
Any activity that does not add any value to the product
Which of the following would be used in determining a process average fraction defective using inductive or inferential statistics?
When using the Poisson as an approximation to the binomial, which of the following conditions apply for the best approximation?
Larger sample size and smaller fraction defective
Sum Square of Error is equal to:
Sum Squares due to Pure Error + Sum Squares due to Lack of Fit
When compared to a standard, the accuracy level of an instrument can only be:
Less than or equal to the standard to which it is compared
What should the Six Sigma team infer if the Pearson's Coefficient between a KPOV and KPIV is 0.09?
The correlation is weak
On receiving customer comments about their product, what should the Six Sigma team do?
Analyze the comments
To find out the overall process efficiency, which of these is considered the best yardstick?
First Pass Yield
Which of the following charts have upper control limits, but frequently have lower control limits of zero?
R and sigma charts
A company wishes to compare the expected mileage of eight different types of car tires. Which one of the following statistical tests is best suited for analysis?
ANOVA
A company making rubber tires is evaluated on 5 opportunities per product. In 1000 products manufactured in a month if 100 defects are observed, the current sigma levels of the process is:
3.6
Which Matrix diagram illustrates relationships in three planes?
C type
The difference between strategic quality goals and the strategic business plan is that:
Strategic quality goals are often a lower tier than the strategic business plan
In the theory of control charts, the distribution of the number of defects per unit follows very closely the:
Poisson distribution
Which of the 5S technique requires you to separate necessary and unnecessary items at the workplace?
Seiri (Sort)
For a process working at 5 Sigma level, how many opportunities are considered to lie outside of the specification limits provided by the customer?
DefiA 5 Sigma process has a total of 233 defects. Thus, option a is correct.nition
TermEncot produces computer chips for large medical and technological corporations. To determine the number of defective chips from each batch of inspected products, what type of chart should managers use?
DefinitionP chart
TermWhat are the two most common determinations of measurement variation that result from a gage R&R study?
Gage reliability and precision
As an experienced experimenter, you have built a predictive model of an experimental data. The difference between the actual response data and the model data are termed as: m
Residuals
In a typical DFSS Approach, which one of these stages figures in most DFSS approaches?
Identify
For a full factorial experiment with 23 treatments and 1 replicate, how many runs could you expect?
46
For a sample size of 36 and a population Standard Deviation of 3, the sample variance for distribution of the means is:
Applying CLT principles, Sample Standard Deviation = 3/sqrt(36) = 0.5 and thus sample variance is square of standard deviation. 0.25 is the right answer.
On a highly automated food processing line, a quality professional wants to chart the weight of packages. The recommended control chart is an X-bar - S chart and not the typical X-bar - R chart, in wide use throughout the facility. Which of the following is the most logical reason for this switch?
The X-bar and S values will come automatically from a weight checker
What is Takt Time?
Average customer demand time for an article
In which of the following stages does the improvement team receive the least control and direction?
Performing
Assuming all other conditions to be same and the sample homogeneous, which of the sampling techniques is probable to give the largest sampling error?
Random sampling
To optimize the response of a process, ideally what sequence of experimentation should one use?
Use screening first and then response surface techniques
What should practitioners be very sensitive to while plotting Control charts?
The type of control charts selected; The sub-group size chosen; The interpretation of the charts
If P(A) is 0.6, P(B) is 0.5, Probability of both the events happening together is 0.25, what is the probability of either event occurring?
P(A or B) = P(A) + P(B)-P(A&B) = 0.6+0.5-0.25 = 0.85. Thus, option a is the correct option.
Calculate the standard deviation of the population for the following set of five sample observations: 1.5 , 1.2 , 1.1 , 1.0 , 1.6
.259
Which of the following techniques used in DOE helps you in eliminating errors due to nuisance factors?
Blocking
SMED is a lean manufacturing concept that is used to reduce waste in the manufacturing process. What does E stand for?
exchange
Normally, what is considered a major fallacy of Hypothesis tests?
The results may be statistically significant in cases, but the practical significance need to be known.
Which of the following tools can be used as a prioritization tool?
Multi-voting
Which of the following does NOT qualify to be an external customer?
One who prepares the product
If Cp = 1 and Cpk = 0.7, what should the Six Sigma Green Belt infer
Mean has shifted
What is the best choice in the hands of a Six Sigma team for them to increase the Power of the experiments?
increase Sample Size
For a 2 level, 5 factor experiment, if the number of runs with 1 replicate is 16, which of the following experiments is the Green Belt looking at?
Quarter fractional factorial
A Six Sigma team has understood their Key Output Variable and wish to measure the Key Input Variables affecting the Output variable. They want to use a tool that could present some kind of statistics or data for them. Which of the tools should they use?
Cause and Effect Matrix
What is the name of the condition if you are running a 7-4 fractional experiment? You know factors A, B, C, D, and E are independent of each other, but you suspect factors F and G are not independent. You conducted a small sub-experiment and discovered a high correlation between factors F and G
Collinearity
What should the Six Sigma Green Belt infer if Cp = 1.1 and Cpk = 0.7?
Mean has shifted
Highly fractional factorial designs are often used as:
Screening experiments
A Six Sigma Green Belt wants to analyze four factors, at two levels each, one factor at a time. What is the impact on the type I error?
A type I error increases with each individual analysis
If men having high blood sugar problems are diagnosed with Diabetes, with the mean blood sugar level to be at 150 and a standard deviation of 10, and any individual having greater than 125 Blood Sugar levels can be diagnosed with Diabetes, what is the probability of committing a Type II Error?
0062
Which of the following techniques is popularly used in Simple Linear Regression to find the best fit model?
Ordinary Least Squares
If %GRR calculated after doing an MSA Study is 32%, what should the Green Belt do next?
Check Equipment and Appraiser Variation
The decision that reliability test results show poor reliability, when in fact the reliability is acceptable is called:
Type I (alpha) error
One of the uses of recording check sheets is:
collecting tally counts of attribute data
If P(A) is 0.6, P(B) is 0.5, Probability of either event happening together is 0.85, what is the probability of both the events occurring?
0.85 = P(A) + P(B)- P(A&B) = 0.6+0.5-0.85 = 0.25. Thus option a is correct.
A team project charter is essential for all of the following reasons, EXCEPT:
It provides a complete history of the project
The advantage of using the modern designed method of experimentation, rather than the classical OFAT is that:
Fewer terms and measurements are needed for valid and useful information
What is the inference of “Process is in control” according to Walter Shewhart?
process has chance cause
The probability of a train arriving on time and leaving on time is 0.8. The probability of the same train arriving on time is 0.84. The probability of this train leaving on time is 0.86. Given the train arrived on time, what is the probability it will leave on time?
The solution to this problem involves conditional probability. The probability of event B occurring, given event A has occurred, is: Let event B be the probability the train leaves on time, and let event A be the probability of the train arriving on time. The intersection of events A and B is the probability of the train arriving and leaving on time. Thus, the probability of event B given event A has occurred is 0.8/0.84 = 0.9524. Option d is correct.
Which of the following is not an advantage of control charts?
They provide straightforward, easily interpreted information
In Six Sigma applications, Standard Deviation is referred to as difference from the:
mean
Which of the following quality tools is used to rank all categories, making apparent the vital few and the trivial many?
Pareto diagrams
A QFD diagram uses which of the following tools?
Relationship Matrix
Cancelling or nullifying suggestions or ideas is NOT a recommended practice in which of the tools:
Brainstorming
Which of the following pairs is the most useful in preparing control charts, when used together, for variables data?
X-bar and R
What is the principle reason One Factor Experiments are not chosen to work with?
They can miss interactions
Which of these tools/techniques represent "continuous improvement"?
Kaizen
Identify the post-improvement tool which would be most beneficial when generating fresh ideas after the results of an improvement process have been disappointing.
A post-improvement brainstorming session
In which of the following stages does the Team Leader acquire or play the role of a Coach?
Storming
What is said to be true when samples are drawn out of a population randomly?
The sampling distribution approaches normality with increase in sample size
What is the major weakness of the one factor at a time experimental strategy?
It fails to account for interactions between factors
What is the major weakness of the one factor at a time experimental strategy?
It fails to account for interactions between factors
Which of the following errors is typically associated with the notion, "False positive"
Type I error
For a process working at 4 Sigma levels, the Rolled Throughput Yield is
Using the Sigma-RTY Conversion table, the answer is 99.37%
In order to ensure data accuracy and integrity, which of the following should NOT be considered?
Remove data based on a firm hunch that it is false
What is the concept behind PDCA?
Continuous improvement
What is Lean philosophy?
Provide perfect value to the customer through a perfect value creation process that has zero waste
The opposite of an alpha risk in hypothesis testing is called:
Level of confidence
If the probability of a car starting on a cold morning is 0.6, and we have two such cars. What is the probability of at least one of the cars starting on a cold morning?
This question can be solved by using additive law of probability:(A u B)= P(A)+P(B)-P(A ∩ B)(A u B)= 0.6 + 0.6 - (0.6*0.6) = 1.2 - 0.36 = 0.84 So option a is the correct answer.
Which is the preferred measure of central tendency for data on Ordinal scale?
Median
Which of the tools listed below can and should be used in conjunction with the Project Charter?
RACI Matrix
What is the definition of Inventory type of waste?
Any supply in excess to process requirements necessary to produce goods or services just-in-time
For a process working at 4 Sigma level, how many opportunities per million are considered to lie outside of the specification limits provided by the customer?
A 4 Sigma process has a total of 6210 defects, thus option b is correct.
For incorporating desired attributes into the earliest stages of product design, which technique out of the following is the most effective?
QFD
Variable control chart subgroup sizes are generally 3, 4, 5, or 6 for all of the following reasons EXCEPT:
They fit onto traditional chart paper very well
What does OEE stand for?
Overall Equipment Effectiveness
The process operating conditions are given below. Process Input Quality Parts Re-worked Process A: 100, 80, 5 Process B: 85, 70, 6 Process C: 76, 60, 4 The Rolled Throughput Yield is:
52%
All the factors that might contribute to a production problem must be discovered. Which among the following problem-solving tools might be the best choice?
Fishbone diagrams
Machines A & B have been showing disparate efficiency and defects per unit rates despite similar variation in quality at purchase time. If the mean squares between the 2 machines is 250 and the mean square from each machine is 100, what is the value of FSTAT (F-Statistics)?
2.5
When selecting and scaling the process input variables for a DOE , which of the following is NOT a desirable approach?
Combine process measurement responses when possible
Statistical quality control techniques are an application of:
Probability theory
The least useful measurement scale is
Nominal
To simplify the planning and scheduling of large and complex projects, which of the project management tools should be used by the Six Sigma team?
PERT
The most important statistical objective of conducting Regression Analysis is:
To represent the relationship with the help of a Best fit line
In which of the stages does a Team Leader play a supervisory role?
Performing
Who should complete the control phase after the successful completion and implementation of the first four phases of DMAIC?
The complete team is the most desirable option.
An ANOVA is the usual test for experiments including many treatments at different levels. The main reason to use ANOVA for significance testing is:
Equality of sample means can be tested by comparing sample variances
Poka-yoke is best defined as:
preventing controllable defects
In the Define Phase, which of these tools would you use as an immediate precursor to the Project Charter?
SIPOC Map
In which of the following stages do normally a lot of conflicts arise?
Storming
A team of six sigma has reached the control stage of DMAIC. They have successfully reduced fabric critical stains from 73 to 1 per fabric roll. Now what type of control chart should the team recommend?
A control chart based on the Poisson distribution such as the u chart
For a data list having outliers, which measure of dispersion works best?
Range
What is more appropriate definition of Non-Value-Add Activity?
Any activity that does not add any value to the product
Which of the following would be used in determining a process average fraction defective using inductive or inferential statistics?
When using the Poisson as an approximation to the binomial, which of the following conditions apply for the best approximation?
Larger sample size and smaller fraction defective
Sum Square of Error is equal to:
Sum Squares due to Pure Error + Sum Squares due to Lack of Fit
When compared to a standard, the accuracy level of an instrument can only be:
Less than or equal to the standard to which it is compared
What should the Six Sigma team infer if the Pearson's Coefficient between a KPOV and KPIV is 0.09?
The correlation is weak
On receiving customer comments about their product, what should the Six Sigma team do?
Analyze the comments
To find out the overall process efficiency, which of these is considered the best yardstick?
First Pass Yield
Which of the following charts have upper control limits, but frequently have lower control limits of zero?
R and sigma charts
A company wishes to compare the expected mileage of eight different types of car tires. Which one of the following statistical tests is best suited for analysis?
ANOVA
A company making rubber tires is evaluated on 5 opportunities per product. In 1000 products manufactured in a month if 100 defects are observed, the current sigma levels of the process is:
3.6
Which Matrix diagram illustrates relationships in three planes?
C type
The difference between strategic quality goals and the strategic business plan is that:
Strategic quality goals are often a lower tier than the strategic business plan
In the theory of control charts, the distribution of the number of defects per unit follows very closely the:
Poisson distribution
Which of the 5S technique requires you to separate necessary and unnecessary items at the workplace?
Seiri (Sort)
For a process working at 5 Sigma level, how many opportunities are considered to lie outside of the specification limits provided by the customer?
DefiA 5 Sigma process has a total of 233 defects. Thus, option a is correct.nition
TermEncot produces computer chips for large medical and technological corporations. To determine the number of defective chips from each batch of inspected products, what type of chart should managers use?
DefinitionP chart
TermWhat are the two most common determinations of measurement variation that result from a gage R&R study?
Gage reliability and precision
As an experienced experimenter, you have built a predictive model of an experimental data. The difference between the actual response data and the model data are termed as: m
Residuals
In a typical DFSS Approach, which one of these stages figures in most DFSS approaches?
Identify
For a full factorial experiment with 23 treatments and 1 replicate, how many runs could you expect?
46
For a sample size of 36 and a population Standard Deviation of 3, the sample variance for distribution of the means is:
Applying CLT principles, Sample Standard Deviation = 3/sqrt(36) = 0.5 and thus sample variance is square of standard deviation. 0.25 is the right answer.
On a highly automated food processing line, a quality professional wants to chart the weight of packages. The recommended control chart is an X-bar - S chart and not the typical X-bar - R chart, in wide use throughout the facility. Which of the following is the most logical reason for this switch?
The X-bar and S values will come automatically from a weight checker
What is Takt Time?
Average customer demand time for an article
In which of the following stages does the improvement team receive the least control and direction?
Performing
Assuming all other conditions to be same and the sample homogeneous, which of the sampling techniques is probable to give the largest sampling error?
Random sampling
To optimize the response of a process, ideally what sequence of experimentation should one use?
Use screening first and then response surface techniques
What should practitioners be very sensitive to while plotting Control charts?
The type of control charts selected; The sub-group size chosen; The interpretation of the charts
If P(A) is 0.6, P(B) is 0.5, Probability of both the events happening together is 0.25, what is the probability of either event occurring?
P(A or B) = P(A) + P(B)-P(A&B) = 0.6+0.5-0.25 = 0.85. Thus, option a is the correct option.
Calculate the standard deviation of the population for the following set of five sample observations: 1.5 , 1.2 , 1.1 , 1.0 , 1.6
.259
Which of the following techniques used in DOE helps you in eliminating errors due to nuisance factors?
Blocking
SMED is a lean manufacturing concept that is used to reduce waste in the manufacturing process. What does E stand for?
exchange
Normally, what is considered a major fallacy of Hypothesis tests?
The results may be statistically significant in cases, but the practical significance need to be known.
Which of the following tools can be used as a prioritization tool?
Multi-voting
Which of the following does NOT qualify to be an external customer?
One who prepares the product
If Cp = 1 and Cpk = 0.7, what should the Six Sigma Green Belt infer
Mean has shifted
What is the best choice in the hands of a Six Sigma team for them to increase the Power of the experiments?
increase Sample Size
For a 2 level, 5 factor experiment, if the number of runs with 1 replicate is 16, which of the following experiments is the Green Belt looking at?
Quarter fractional factorial
A Six Sigma team has understood their Key Output Variable and wish to measure the Key Input Variables affecting the Output variable. They want to use a tool that could present some kind of statistics or data for them. Which of the tools should they use?
Cause and Effect Matrix
What is the name of the condition if you are running a 7-4 fractional experiment? You know factors A, B, C, D, and E are independent of each other, but you suspect factors F and G are not independent. You conducted a small sub-experiment and discovered a high correlation between factors F and G
Collinearity
What should the Six Sigma Green Belt infer if Cp = 1.1 and Cpk = 0.7?
Mean has shifted
Highly fractional factorial designs are often used as:
Screening experiments
A Six Sigma Green Belt wants to analyze four factors, at two levels each, one factor at a time. What is the impact on the type I error?
A type I error increases with each individual analysis
If men having high blood sugar problems are diagnosed with Diabetes, with the mean blood sugar level to be at 150 and a standard deviation of 10, and any individual having greater than 125 Blood Sugar levels can be diagnosed with Diabetes, what is the probability of committing a Type II Error?
0062
Which of the following techniques is popularly used in Simple Linear Regression to find the best fit model?
Ordinary Least Squares
If %GRR calculated after doing an MSA Study is 32%, what should the Green Belt do next?
Check Equipment and Appraiser Variation
The decision that reliability test results show poor reliability, when in fact the reliability is acceptable is called:
Type I (alpha) error
One of the uses of recording check sheets is:
collecting tally counts of attribute data
If P(A) is 0.6, P(B) is 0.5, Probability of either event happening together is 0.85, what is the probability of both the events occurring?
0.85 = P(A) + P(B)- P(A&B) = 0.6+0.5-0.85 = 0.25. Thus option a is correct.
A team project charter is essential for all of the following reasons, EXCEPT:
It provides a complete history of the project
The advantage of using the modern designed method of experimentation, rather than the classical OFAT is that:
Fewer terms and measurements are needed for valid and useful information
Who should complete the control phase after the successful completion and implementation of the first four phases of DMAIC?
the complete team is the most desirable option
Which type of chart is used for small shifts in variation
CUSUM
Which of the following is an advantage of the production of a product in large lots?
machine efficiencies
A sample is to a statistic as a population value is to a
parameter
Why are scatter diagrams useful in problem solving
they show relationships between variables
If 6 consecutive samples were taken from a process and precisely measured, you can still expect differences. What type of variation would be the most difficult one to determine
Lot to lot variation
Hypothesis testing is usually done to
Statistically validate if a sample mean belongs to the population
Which of the following inference tests does NOT require the knowledge of a test or population variation
t test
Which of the following is the LEAST likely candidate to assist in the problem definition stage of Six Sigma
CTQ trees
What is the use of scatter diagrams
display correlation
What would be considered the most important element in the deployment of Six Sigma
management support
What is the attempt to reduce human the impact of human error in a process called
poka yoke
The determination of temporal variation in multi-vari charting means
variation over time
Which of the following escribes internal failure costs
The costs resulting from a nonconformance detected before a product or service is provided
If an experiment has an alias, you could say that the two factor effects are
confounded
Which type of control chart is ideal for destructive testing
I chart
Which of the following statements is not true with regard to regression analysis
least squares is required to determine the best fit straight line
What set of basic quality tools would be most applicable for a work team to use when there is a desire to follow procedures and work instructions more closely
checklist and flow charts
A six sigma team has been created to improve the process in which a company takes orders for its products. Which of the following tools should the team use to determine all the potential pitfalls and the actual defects that occur
process failure mode and effects analysis
Which approach talks about equipment effectiveness
TPM
Which six sigma role is most likely to define objectives for an improvement team
sponsor
What is accuracy
getting an unbiased true value
Which of the following is used to test the equality of medians from two or more different populations
moods median
In terms of ease of understanding, which of the following tools is considered best to inform employees of their work roles
Written instructions
For a process working at 3 Sigma level, how many opportunities out of one million are considered to lie outside of the specification limits provided by the customer
66807
A sample ___ is used to make inferences about the population ___.
Statistic; Parameter
After a solution pilot is deployed, what type of hypothesis test should be used
Sample t-test
Which tool is specifically designed to identify risks of a potential solution
FMEA
The UCL and LCL on a traditional control chart are set how many standard deviations below and above the average
3
5S steps
Seiri=sort

Seiton=set in order

Seiso=shine

Seiketsu=Standardize

Shitsuke=Sustain

Using which of the following tools can basic information about data, such as central location, width, spread, and shape be visualized
Histograms
In a single factor ANOVA, the assumption of homogeneity of variances applies to
The variances within the treatment groups
To state that a model in an experimental design is fixed indicates that
The levels used for each factor are the only ones of interest
Which statistic can be used to determine the probability of variances occuring
Chi-Square statistic
Which of the following is the only way to analyze variance by ranks
Kruskal-Wallis
When a single gage is checked by comparing the results of different operators taken at different times, a reference is being made to the gage
reproducibility
what is the key benefit of multi vari charting
it assists in the breakdown of components of variation
Identify the relationship between waste and defect
defect is a type of waste
Identify the post improvement tool which would be most beneficial when generating fresh ideas after the results of an improvement process have been disappointing
a post improvement brainstorming session
Conceptually, which tool used in the Six Sigma implementation resembles the Process Decision Program Chart
FMEA
What is FMEA
Failure modes: means the ways, or modes, in which something might fail.

Effects Analysis: refers to studying the consequences of those failure modes

A "pull" production system is a production system where you make as much product as you can regardless of whether the customer needs it or not
false
In hypothesis testing, if someone stated one minus the level of confidence risk, then which of the following statistics would be under consideration
the alpha risk
What is the basic assumption of null hypothesis
While plotting a multi-vari chart on the graph paper, what metric is used for the horizontal scale
time