Six Sigma Foundations
For a process whose distribution follows the Normal curve, _____.
99.7% of the variation lies within 3 standard deviations of the mean
The goal statement should NOT be _____.
Broad
All of the following are graphs and charts for continuous data, except _____.
Pareto charts
How do you calculate Defects Per Million Opportunities or DPMO?
Take the total number of defects divided by the total number of opportunities, multiplied by one million.
T/F: A process with more variation has a longer boxplot.
True
T/F: A six sigma level of performance means there is no more than 3.4 defects per million opportunities.
True
T/F: SPC charts signal when to intervene and when to leave the process alone.
True
T/F: The higher the process capability, the higher the sigma level.
True
T/F:A pilot is a dry run or trial run on a small scale to make sure that improvements will work as planned
True
The term Six Sigma refers to all of the following, except _____.
Variation
Right after brainstorming, the number of causes on a cause-effect diagram is _____.
Zero
A tool for selecting solutions is _____.
criteria selection matrix
CTQs are the performance characteristics of a process, product or service that are critically important to _____
customers
Steps in the Control phase include all of the following, except _____.
develop an improvement plan
When planning for data collection, you should start by _____.
developing a list of specific questions
Steps in the Define phase include all of the following, except _____.
developing solutions
When mapping the process, you should _____.
document the process flow
Projects should address a deficiency or improvement opportunity that is any of the following, except _____.
generic and widely applicable
When analyzing a process map, you should do all of the following, except _____.
identify valuable steps
The levels of mistake-proofing are all of the following, except _____.
inspection
Steps in the Analyze phase include all of the following, except _____.
measure the Y in Y = f(x)
Steps in the Measure phase include all of the following, except _____.
measuring the X
The P in SIPOC stands for _____.
process
Hypothesis testing is used to _____.
prove the key Xs
Steps in the Improve phase include all of the following, except _____.
prove the root causes
The measurement system should be _____.
repeatable and reproducible
RPN or Risk Priority Number is the product of all three of the following scores, except _____.
risk
Key elements of the project charter include all of the following, except _____.
strategic vision
When selecting Six Sigma project team members, your primary goal should be to select _____.
the best people for that project
Who approves the project charter?
the project champion
DMAIC are the five phases of a Six Sigma project___
to determine and address the key X factors to improve Y in Y = f(x)
When planning for data collection in the Analyze phase, you should ask all of the following questions, except _____.
what theory or hypothesis should be proposed
Control plans tell you all of the following, except _____.
what to improve
The correct progression of expertise is _____.
white, yellow, green and black belt