Six Sigma

1.

1 point

IN DMAIC Which of the following is the key objective of a six sigma project?

Reducing variation in critical processes

Developing detailed control charts for critical processes

Reducing investment costs while improving output quality

Developing a matrix to understand the how’s and what’s of a problem process

2.

1 point

Which of the following tools is used to identify potential events and contingencies for an implementation plan?

Fishbone diagram

Process decision program chart

PERT chart

House of quality

3.

1 point

in a Process Which of the following measures is increased when process performance is improved?

Repeatability index

Capability index

Specification limits

Variability range

4.

5 points

In statistics For a normal distribution, two standard deviations on each side of the mean would include what percentage of the total population?

68%

47%

34%

95%

5.

1 point

In Analyze Positional, cyclical, and temporal variations are most commonly analyzed in

run charts

cause and effect diagrams

multi-vari charts

SPC charts

6.

5 points

In Analyze Which of the following terms is used to describe the risk of a type I error in a hypothesis test?

Power

Level of significance

Beta risk

Confidence level

7.

1 point

IN measurement, A measurement system analysis is designed to assess the statistical properties of

gage variation

process stability

process performance

engineering tolerances

8.

1 point

Which of the following measures is used to show the ratio of defects to units?

DPU

DPMO

DPO

PPM

9.

1 point

In DMAIC, In order for value flow analysis to be effective, a team must take which of the following steps first?

Identify overlapping functions in the value stream

Define the value stream

Eliminate backlogs in the value stream

Identify specific work practices within the value stream

10.

1 point

In Statistics Which of the following tools is used to translate broad requirements into specific requirements?

A quality control plan

A process flowchart

A critical to quality (CTQ) tree

The theory of constraints (TOC)

11.

1 point

In define Phase Which of the following shapes is used to present a termination point in a flowchart?

Diamond

Rectangle

Oval

Arrow

12.

1 point

In a project Which of the following tools is used extensively in quality function deployment (QFD)?

Affinity diagram

Activity network diagram

Matrix diagram

Cause and effect diagram

13.

2 points

Which of the following is a commonly accepted level for alpha risk?

0.95

0.05

0.50

0.70

14.

1 point

In Statistics correlation analysis is used to provide a numeric value for which of the following types of relationships between two variables?

Random

Linear

Curvilinear

Causation

15.

1 point

In a Problem Solving Which of the following tools can be used to identify and quantify the source of a problem?

Pareto chart

Quality function deployment

Affinity diagram

Control chart

16.

5 points

In control Which of the following is an example of mistakeproofing?

Using an X - R chart to prevent errors

Using 100% inspection to detect and contain defects

Using color coding as an error signal

Having the team that created the errors repair them

17.

1 point

IN Six Sigma The critical path for a project is best described as the

sum of the tasks with the shortest time requirements

) longest path from the start to the completion of the project

sequence of steps with the highest costs

tasks in the project that have the highest risk of failure

18.

1 point

The statistics that summarize a population are referred to as

categorical statistics

descriptive statistics

probabilistic statistics

control statistics

19.

1 point

in SPC Which of the following control charts is used to monitor discrete data?

X

I & mR

p

X - R

20.

5 points

In Six Sigma When an inspection process rejects conforming product, what type of error is being made?

H0

b

a

σ

21.

3 points

In Control phase, Statistical process control (SPC) is best defined as the use of

statistical methods to identify and remove manufacturing errors

Pareto charts to understand and control a process

) statistical methods to understand and control a process

inputs to control critical and complex processes

22.

2 points

In phase Improve When the sampling method used creates a difference between the result obtained from the sample and the actual population value, the difference is known as

precision

correlation

bias

accuracy