Under what conditions should I use an approximate Z-score vs a t-test?
82287
Choosing between $z$-test and $t$-test
19247
How should one interpret the comparison of means from different sample sizes?
65565
Multiple t-tests vs. one-way ANOVA
85035
Can ANOVA be significant when none of the pairwise t-tests is?
51840
The standard normal distribution vs the t-distribution
96379
Choosing the appropriate statistical test
19603
Conflicting approaches to variable selection: AIC, p-values or both?
74477
T-test for non normal when N>50?
118772
Is R-squared value appropriate for comparing models?
42510
Always use Welch-t test (unequal variances t-test) instead of Student-t or Mann-Whitney test?
46759
Regarding p-values, why 1% and 5%? Why not 6% or 10%?
36823
Paired Samples T-Test by Day or By Group?
147303
t-test on highly skewed data
155619
Goodness-of-fit test in Logistic regression; which 'fit' do we want to test?
32215
Why is the t-test designed for small samples?
127435
Estimating parameters of Student's t-distribution
55841
Fisher's exact test: 95% CI or p-value