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  • Hypothesis Tests for Variances, Proportions, ANOVA, and Chi-Square in Six Sigma
    The hypothesis test is one of the most important tools used in the Analyze stage of the Six Sigma DMAIC methodology. A hypothesis test helps to determine whether or not an observed relationship or difference truly exists between inputs and outputs identif
  • Introduction to Hypothesis Testing and Testing for Means in Six Sigma
    The Analyze phase in Six Sigma closely examines the many process inputs identified in the Measure phase to determine if they are related to outputs, and if a relationship does exist, if it is statistically significant. An important tool for this analysis
  • Exploratory Data Analysis in Six Sigma
    In the Analyze stage of the Six Sigma DMAIC process, you closely examine the output variable (known as y) and its possible causes or input variables (known as x's) collected in the Measure stage to get a deeper understanding of their relationships. The go