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## Critical Chi-Square Values

Instructions: Compute critical Chi-Square values for the Chi-Square distribution using the form below. Please type the significance level $$\alpha$$, the number of degree of freedom (df),and indicate the type of tail (left-tailed, right-tailed, or ...

## Critical T-values

Instructions: Compute critical t values for the t-distribution using the form below. Please type significance level $$\alpha$$, number of degrees of freedom and indicate the type of tail (left-tailed, right-tailed, or two-tailed) Significance level ...

## Kruskal-Wallis Test Calculator

Instructions: This calculator conducts Kruskal-Wallis Test, which is non-parametric alternative to the One-Way ANOVA test, when the assumptions are not met for ANOVA. The purpose of the test is to assess whether or not the samples come from ...

## Box Plot Maker

Instructions: The following graphical tool creates a box plot on the data you provide in the boxes. You can type one or more samples. Please press ‘\’ to start a new sample. Type the samples (comma or space separated, press ...

## Stem-and-Leaf Plot Maker

Instructions:The following graphical tool creates a Stem-and-Leaf on the data you provide in the box below. Type the sample (comma or space separated, press “Enter” for a new sample): More About Stem Plots What is a Stem-plot? A ...

## Histogram Maker

Instructions: The following graphical tool creates a histogram based on the data you provide in the boxes below. All you have to do is type your data and also the number of bins (typically between 4 and 10). The tool will construct a histogram for ...