Six Sigma ICGB Practice Test - Questions Answers, Page 2
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It is a Type I error if we reject the Null Hypothesis when it is actually true.
Inferential Statistics is largely about Significance. There are both Practical and _______________ Significance to consider during an analysis of data in a Lean Six Sigma project.
Having an Alpha of .05 and a Beta of .10 are the most common risk levels when running a Statistical test.
The Alpha level of a test (level of significance) represents the yardstick against which P-values are measured and the Null Hypothesis is rejected if the P-value is which of these?
A 1-Sample t-test is used when you want to compare the Median of one distribution to a target value.
Contingency Tables are used to perform which of these functions?
For the data shown here a Belt suspects the three grades are supplying the same results.
Which statement(s) are true for proper Hypothesis Testing?
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a ________________________Chart.
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
Skewed, or Mixed, Distributions occur when data comes from several sources that are supposed to be the same yet are not.
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