Tag: green-belt

Quizzes (5) Questions (124)

Questions Related to green-belt

Multiple choice six-sigma green-belt

A methodology that measures the amount of variation in the measurement system arising from the measurement device and the people taking the measurement

  1. Gage R&R

  2. ANOVA

  3. Linearity

  4. Accuracy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gage R&R (Repeatability and Reproducibility) quantifies measurement system variation from two sources: the measurement device itself (repeatability - variation when same operator measures same part repeatedly) and different operators (reproducibility - variation between different operators measuring same part). ANOVA is used within R&R studies, Linearity and Accuracy are separate MSA components.

Multiple choice six-sigma green-belt

A pictorial diagram showing possible causes for a given effect

  1. Affinity diagram

  2. Fishbone Diagram

  3. Deployment chart

  4. Scatter Diagram
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Fishbone Diagram (also called Ishikawa or Cause-and-Effect Diagram) organizes potential causes of a problem into categories (typically Man, Machine, Material, Method, Environment, Measurement) resembling a fish skeleton. Affinity Diagrams group ideas into themes, Deployment Charts show process stages, and Scatter Diagrams display variable relationships.

Multiple choice six-sigma green-belt

A plot displaying the relationship between the process input variable "x" and the process output variable "y"

  1. Statistical Process Control

  2. Pareto Chart

  3. Scatter Diagram

  4. Process Map
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A Scatter Diagram plots paired (x,y) data points to visually display the relationship - or lack thereof - between two continuous variables. Each point represents one observation with both an input (x) and output (y) value. SPC monitors process stability over time, Pareto Charts prioritize by frequency, Process Maps flowchart activities.

Multiple choice six-sigma green-belt

A Robust system

  1. Can accept inputs of various quality and type, and produce the same high quality output

  2. Can accept inputs of various quality but same type, and produce the same high quality output

  3. Can accept inputs of same quality but different type, and produce the same high quality output

  4. Can accept inputs of same quality and type, and produce the same high quality output
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A Robust System is designed to handle variation in input quality (different performance levels) AND input type (different categories/sources) while still consistently producing high-quality output. This differs from systems that only handle variation in one dimension. Robustness is a key Six Sigma design principle for creating processes that work reliably in real-world conditions.

Multiple choice six-sigma green-belt

A set of data is collected that can be rated or ranked. This data is termed as

  1. Continuous Data

  2. Binary Categories

  3. Discrete Count

  4. Ordered Categories
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ordered Categories (ordinal data) can be logically ranked or rated on a scale, such as customer satisfaction (very dissatisfied to very satisfied), performance ratings, or agreement levels. Unlike continuous data with precise measurements, or binary categories with only two values, ordered categories have a clear sequence but the intervals between categories may not be equal.

Multiple choice six-sigma green-belt

A strong positive relationship exists when correlation coefficient r is

  1. 0

  2. 1

  3. Infinity

  4. -1
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The correlation coefficient r ranges from -1 to +1, where +1 represents a perfect positive linear relationship between two variables. When r = 1, all data points fall exactly on an upward-sloping line. A value of 0 indicates no linear relationship, while -1 indicates a perfect negative relationship.

Multiple choice six-sigma green-belt

Account Manager wanted to see whether time taken by offshore to solve the change request is high when compared to onsite. Help him with proper Hypothesis Test

  1. 1 Sample t-test

  2. 2 Sample t-test

  3. Paired t-test

  4. Chi Square test
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A 2-Sample t-test is used to compare the means of two independent groups (offshore vs. onsite) to determine if there is a statistically significant difference between them. A 1-sample test compares one group to a standard, while a paired test compares related observations.

Multiple choice six-sigma green-belt

Affinity diagram helps in

  1. Showing which of the rootcauses are more important

  2. Relating the rootcauses and solutions

  3. Categorizing the items

  4. Showing cause and effect of the items
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An affinity diagram is a quality management tool used to organize large numbers of ideas, data, or issues into natural categories or groups based on their relationships. It helps teams make sense of qualitative information by grouping similar items together. The other options describe different tools: Pareto charts show importance, fishbone diagrams relate causes to effects.