Hypothesis Tests Calculator
Calculators
Type II Error Calculator
A type II error occurs in hypothesis tests when we fail to reject the null hypothesis when it actually is false. The probability of...
Calculators
Hedges’ g Calculator
Hedges’ g is a way to measure effect size, which gives us an idea of how much two groups differ. It is used as...
Calculators
Pooled Variance Calculator
When performing a two sample t-test, we typically assume that the variances between the two samples are equal. Under this assumption, we can calculate...
Calculators
Bonferroni Correction Calculator
When you conduct a single statistical test to determine if two group means are equal, you typically compare the p-value of the test to...
Calculators
Pooled Standard Deviation Calculator
The pooled standard deviation is a weighted average of two standard deviations from two different groups. It is typically used in a two sample...
Calculators
Wilcoxon Signed-Rank Test Calculator
The Wilcoxon Signed-Rank Test is the non-parametric version of the paired t-test. It is used to test whether or not there is a significant...
Calculators
Two Proportion Z-Test Calculator
A two proportion z-test is used to test for a difference between two population proportions. The test statistic is calculated as:
z = (p1-p2) /...
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