Tag: green-belt

Quizzes (5) Questions (124)

Questions Related to green-belt

Multiple choice six-sigma green-belt

What is Cost benefit Analysis used for?

  1. Justifies in financial terms why it is worth executing the Project

  2. Analysis of the project Ys

  3. Analysis of only project execution cost

  4. Exponentially Waivered Moving Average
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cost Benefit Analysis justifies a project financially by comparing expected costs with anticipated benefits. It demonstrates the economic rationale and return on investment, proving the project is worth pursuing in monetary terms rather than just qualitative improvements.

Multiple choice six-sigma green-belt

When a common cause is interpreted as a special cause we would be _____

  1. Under reacting

  2. Over reacting

  3. Process Change

  4. Quick fix
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a common cause (inherent, random variation) is incorrectly interpreted as a special cause (assignable, unusual variation), we overreact by making unnecessary adjustments to a stable process. This increases variation and degrades performance - known as tampering.

Multiple choice six-sigma green-belt

Which Hypothesis test is used to see whether 3 sample means of continuous data are equal or not?

  1. ANOVA

  2. ANOM

  3. Chi-square

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

ANOVA (Analysis of Variance) is the hypothesis test used to determine if three or more sample means are statistically equal or different. It analyzes variance within and between groups to test mean differences. ANOM tests for differences from overall mean, Chi-square for categorical data.

Multiple choice six-sigma green-belt

Which is not a correct goal statement?

  1. Improve Productivity by 60% before Q4 2004

  2. Improve Employee Safety by installing Fire Extinguishers in all floors before 31 March 2005

  3. Increase the number of customer base in the ABC system by 95% by 3 Sep 2005

  4. Reduce the occurrence of error in XYZ system by 60% before 20 Jan 2006
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option B is not a correct goal statement because it describes an ACTIVITY (installing fire extinguishers) rather than an OUTCOME. Proper goal statements focus on measurable results (like 'Improve Productivity by 60%' or 'Reduce errors by 60%') not tasks or activities.

Multiple choice six-sigma green-belt

Which is not true

  1. Interpreting common cause as common cause will lead to systematic process change

  2. Interpreting special cause as special cause will lead to possible containments

  3. Interpreting special cause as common cause will lead to overreacting

  4. Interpreting common cause as special cause will lead to overreacting
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice six-sigma green-belt

Which methodology will you use if you have to redesign a process that has reached its entitlement

  1. DMADV

  2. DMAIC

  3. DoE

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

DMADV (Define, Measure, Analyze, Design, Verify) is specifically used for designing new processes or products, or for completely redesigning an existing process that has reached its performance entitlement. DMAIC is for incremental improvements on existing processes. The question specifically asks about redesigning a process that has reached its entitlement, making DMADV the correct choice.

Multiple choice six-sigma green-belt

Which of the following is a measure of variation

  1. Mode

  2. Quartile

  3. Mean

  4. Standard Deviation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Standard deviation is a measure of variation or dispersion in a dataset. It quantifies how spread out the data points are from the mean. Mode, mean, and median are measures of central tendency, while quartiles are positional measures that divide data into quarters. Only standard deviation directly measures variation.

Multiple choice six-sigma green-belt

Which of the following is incorrect

  1. Measurement error is always present in the total variation

  2. Measurement variation can be separated from the true process variation

  3. Measurement error is always a bigger deal than you think

  4. Measurement variation should be minimum
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice six-sigma green-belt

Which of the following is not a measure of central tendency?

  1. Arithmetic mean

  2. Mode

  3. Median

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

Measures of central tendency describe the center or typical value of a dataset. Arithmetic mean, mode, and median are all measures of central tendency. Variance is a measure of dispersion or spread, not central tendency - it quantifies how far data points deviate from the mean. Therefore, variance is the correct answer as the option that is NOT a measure of central tendency.