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One of the biggest challenges Six Sigma students encounter is Hypothesis Testing. There are so many types! And there are...

The Ford Company developed 8D method for root cause analysis, it consists of 8 different steps, and gap analysis is...

Gap Analysis is an assessment tool we use in Six Sigma. In it, we compare an organization’s current performance to...

What is a Two Sample T Hypothesis Test? A two sample t hypothesis tests also known as independent t-test is...

The one and two-sample proportion hypothesis tests involve one factor with one and two samples, and likewise, these tests may...

1 sample Wilcoxon non parametric hypothesis test is one of the popular non-parametric tests. One sample t-test is to compares...

Sign Test The 1 Sample Sign Non Parametric Hypothesis test was invented by Dr. Arbuthnot a Scottish physician in the...

The Friedman Non Parametric hypothesis test is an alternative to the one-way ANOVA with repeated measures. Friedman test was developed...

Mood’s median test is a nonparametric test to compare the medians of two independent samples. It is also used to...

Kruskal-Wallis Test The Kruskal–Wallis Non Parametric Hypothesis Test (1952) is a nonparametric analog of the one-way analysis of variance. It...