T-test. Whether to assume equal or unequal variance
42510
Always use Welch-t test (unequal variances t-test) instead of Student-t or Mann-Whitney test?
83215
Using Ratio test/Comparison test
132522
Does a big difference in sample sizes together with a difference in variances matter for a t-test (or permutation test)?
15075
How to choose between t-test or non-parametric test e.g. Wilcoxon in small samples
42345
Degrees of freedom in theoretical sample variance (for use in F-distribution)
106646
Prove F test is equal to T test squared
127435
Estimating parameters of Student's t-distribution
117477
Paired versus unpaired t-test
118871
Testing whether the mean of a group is different from the mean of the entire sample
57271
Testing equality of coefficients from two different regressions
141699
Two- Sample T test on Employment Data
1481
Comparing multiple mean scores using t-Test
129313
Testing for significant differences in skewness
59361
Can a paired (or two group) t-test test if the difference between two means is less than a specific value?
153887
Reporting Mann-Whitney U-Test without homogenity of variance
94870
Testing for significance between means, having one normal distributed sample and one non normal distributed
36823
Paired Samples T-Test by Day or By Group?