hypothesis tests

Consider a production process that produced 10,000 widgets in January and experienced a total of 112 rejected widgets after a...

Linear regression is one of the most commonly used hypothesis tests in Lean Six Sigma work. Linear regression offers the...

ANOVA (analysis of variances) is a statistical technique for determining the existence of differences among several population means. The technique...

In some situations, Six Sigma practitioners find a Y that is discrete and Xs that are continuous. How can a regression equation be...

More often than not, Lean Six Sigma practitioners have to find out whether two groups that look quite the same...

Measurement error is unavoidable. There will always be some measurement variation due to the measurement system itself. Most problematic measurement...

Rejecting a null hypothesis when it is false is what every good hypothesis test should do. The “power of the...