1. What is data stratification?

capturing and use of characteristics to sort data into different categories (also known as "slicing the data")

When your data comes from a variety of different sources

When data has large gaps

None of these

2. Regression and correlation analysis helps:

If a process meets the specification limits

Understand how variables within a process might be related.

How to undo a process change if it makes things worse

How in control a process is

3. Common cause variation is:

Special and out of control

Present in every process, produced by the process itself, and can be removed and/or lessened but requires a fundamental change in the process

A cause for alarm

None of these

4. What is the best definition of the 'Capability' of a process?

Is the process changeable

Is the process "elastic"

Is the process in control

Is the process capable of meeting the voice of the customer and their targets

5. Benefits of piloting include the following EXCEPT:

Increased opportunity for feedback and buy-in

Improved solution that meets customer CTQs

Gets an early version of a solution out quickly to a particular segment

Completion the project

6. Understanding "the voice of the customer" is a technique used to

Ensure a process is stable

Ensure voicemails are being answered

Ensure the belt's reccomendations are being listened to

Ensure a project team is listening to the customers regarding the challenges and possible solutions of a process that needs improvement

7. If R Squared is 76.8%, this means that:

76.8% of the variation in Y can be explained by the model and 23.2% of the variation in Y consists of other X variables, measurement variation, and/or other noise.

None of these

23.2% of the variation in Y can be explained by the model and 76.8% of the variation in Y consists of other X variables, measurement variation, and/or other noise.

No answer text provided.

8. What is the middle value in a data set when arranged in numerical order?

Mean

Quartile

Mode

Median

9. The Pareto Principle states:

Anything that can go wrong, will go wrong

80 percent of the causes lead to 10 percent of the results

20% of the causes lead to 80 percent of the effect

If you want a correct answer assert an incorrect answer and someone will correct you

10. H_a is:

The alternative hypothesis which hypothesizes that the groups are different.

The null hypothesis which hypothesizes there is no difference between groups (they are the same)

P value

None of these

11. Spread (variation) shows:

Group of answer choices

Range

Standard deviation

Coefficient of variation

Variance

Interquartile range

12. Lean Six Sigma projects needs select all that apply

Group of answer choices

money

sponsorship, corporate alignment, data, customers

solutions, champions/sponsors, subject matter experts

Benefits, timeline, maps

13. The three properties of data that needs to be reviewed in a project are:

Group of answer choices

Central Tendency

Muda

Spread/Dispersion

Shape

Time limits

14. This type of waste is movement of people the does not add value

Group of answer choices

Inventory

Defects

Motion

Overproduction

15. Y=f(x) means

Group of answer choices

Identify critical inputs/causes (x's) that are creating the problem (y)

There is no math in lean six sigma

X is caused by Y

Allows you to calculate the slope of your graph