10 Questions
¿Cuál es el objetivo principal de la fase de Medida en Six Sigma?
Recopilar datos y definir el problema o oportunidad
¿Qué técnica estadística se utiliza para comparar medias de dos o más grupos?
Análisis de varianza (ANOVA)
¿Qué es el propósito principal de la técnica de DOE (Diseño de Experimentos)?
Identificar las relaciones entre variables
¿Qué se utiliza para estimar la repetibilidad y reproducibilidad de un sistema de medición en R&R?
Método de componentes de varianza
¿Qué herramienta se utiliza en la fase de Análisis para identificar las relaciones entre variables?
Análisis de regresión
¿Cuál es el propósito principal de la fase de Análisis en Six Sigma?
Identificar las causas raíz del problema y oportunidades de mejora
¿Qué es un nivel en DOE?
Un valor específico de una variable
¿Qué se utiliza en la fase de Medida para identificar las variables clave del proceso?
Mapas de procesos
¿Cuál es el propósito principal de la técnica de Gauge R&R?
Evaluar la precisión y exactitud de un sistema de medición
¿Qué se utiliza en la fase de Análisis para identificar las causas raíz del problema?
Prueba de hipótesis
Study Notes
Lean Six Sigma Green Belt
Measure Phase
- Goal: to collect data and define the problem or opportunity
- Key activities:
- Define the process and its boundaries
- Identify the key process input variables (KPIVs) and key process output variables (KPOVs)
- Develop a data collection plan
- Collect data and validate the measurement system
- Tools and techniques:
- Process mapping
- Swimlane analysis
- Cause-and-effect diagrams
- Gauge R&R (repeatability and reproducibility)
Analyze Phase
- Goal: to identify the root causes of the problem and opportunities for improvement
- Key activities:
- Analyze the data collected during the Measure phase
- Identify the relationships between KPIVs and KPOVs
- Validate the root causes of the problem
- Develop a preliminary solution
- Tools and techniques:
- Regression analysis
- Correlation analysis
- Hypothesis testing
- ANOVA (analysis of variance)
ANOVA (Analysis of Variance)
- A statistical technique used to compare means of two or more groups
- Purpose: to determine if there is a significant difference between the means of the groups
- Key concepts:
- Factors: the variables being studied
- Levels: the different values of the factors
- Treatments: the combinations of factor levels
- F-test: a statistical test used to determine if the means are significantly different
- P-value: the probability of observing the results by chance
DOE (Design of Experiments)
- A systematic approach to experimentation and data collection
- Purpose: to identify the relationships between variables and to optimize processes
- Key concepts:
- Factors: the variables being studied
- Levels: the different values of the factors
- Treatments: the combinations of factor levels
- Runs: the individual experiments
- Response variable: the outcome being measured
- Types of DOE:
- Full factorial designs
- Fractional factorial designs
- Plackett-Burman designs
- Taguchi designs
R&R (Repeatability and Reproducibility)
- A measure of the variability of a measurement system
- Purpose: to evaluate the accuracy and precision of a measurement system
- Key concepts:
- Repeatability: the variation in measurements taken by the same operator using the same instrument
- Reproducibility: the variation in measurements taken by different operators using the same instrument
- Gage R&R: a measure of the variability of a measurement system, including both repeatability and reproducibility
- Calculation: uses the variance components method to estimate the repeatability and reproducibility of the measurement system
This quiz covers the Measure and Analyze phases of Lean Six Sigma Green Belt certification, including process mapping, regression analysis, and design of experiments. Test your knowledge of key concepts and tools used in these phases.
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