Six Sigma Flashcards
What is the term for a clear statement that defines what is included (and, by exclusion, what is not included) in a Lean Six Sigma process improvement project?
Scope
What error is typically associated with the notion ‘false positive’m
Type 1 error
The total time to manufacture a part through its complete value stream is the ______ time.
Lead
What is used to model rates and has the probability of exactly r events occurring, has a mean equal to variance, can tell you the number of defects per disk drive and is widely used in queuing theory.
Poisson Distribution
________ is the term used for the output of the process that you investigate in the experiment. It is synonymous with the Y in Y=f(x) equation. The whole point is to figure out how the x’s combine together to affect the Y.
Response
A Six Sigma project can reduce:
Both internal and external failure costs.
In the project development cycle, what would a “waste” mean?
Time spent on fixing defects
Who introduced PDCA?
Deming
A company wishes to compare the expected mileage of eight different types of car tires. Which statistical tests is best suited for the analysis?
ANOVA
5 whys is a technique that is not used in:
Statistics
Which is the Greek letter(s) that is often used to describe the standard deviation of data?
Sigma
When finding a confidence interval for mean “mu,” based on a sample size of n, which of the following statements is true?
Increasing then decreases the interval
What is the DPMO of a Six Sigma process?
3.4
The input variables, Xs in the six sigma Y = f(x) equation that you purposely control during the experiment are called
Factors
What is the statistic used for central tendency with normal data?
Mean
“Customer bad will” is a term used in the cost of quality under which classification?
External failure costs
Data that can be measured on a continuum and has meaningful decimal subdivisions are __________ data.
Surplus
Which of the following tests should be considered when the tests are normal and we are using more than two populations?
Bartlett’s test
What is the term that is defined as the number of units coming out of a process divided by the number of units going into that process over a specified period of time?
First pass yield (FPY)
What is the term for the mathematical expression that describes the relationship between two or more variables that is normally used to make a projection into an untested region?
Regression
What is the Japanese term for mistake proofing that is an engineered method that makes it very difficult or impossible to produce a defective part and does not require human assistance?
Poke-yoke
Factorial experiments:
Include two or more independent variables
What type of error incorrectly rejects the null hypothesis?
Type 1
What type of error fails to reject the null hypothesis (Ho) when you should do so?
Type 2
What is the Japanese term that translates to “card” or “board” and indicates some form of the signal within a process? It is part of just-in-time (JIT) processing, where either a physical or electronic device indicates that it’s time to order inventory, process a unit, or move to the next step in a process.
Kanban (aka signboard)
What would be used to screen variables, or various inputs, to analyze their relative impact on the output of concern?
Multi-vari chart
What is the Japanese term for “waste” that refers to anything in a process that does not add value from the customer’s perspective?
Muda (aka waste)
Which of the following is not a type of waste?
Testing
What is used to measure how well the process performs to meet given customer specification limits?
Capability
What is any defective item, unit, or output that passes through an entire process and is received by the customer?
External failure cost
