We should verify first if the variances are equal with F-test before verify if the means are equal with t-test?
126455
How do I interpret the results from the F-test in excel
51319
How to compare group means for two samples with t-test using R?
50900
Testing normality
5301
F test and categorical variables
23190
Interpretation of the t.test and Wilcox.test in R
27797
Is there a t-test equivalent to Stouffer's z-test?
65565
Multiple t-tests vs. one-way ANOVA
37371
Why is expected value of random variable equal to mean
122977
Why must a null hypothesis contain equality?
147303
t-test on highly skewed data
111953
Independent samples t-test with unequal sample sizes
128767
t test on original result, log2(result), fold change and log2(fold change)
120109
Equivalent to Welch's t-test in GLS framework
153887
Reporting Mann-Whitney U-Test without homogenity of variance
131642
How to check for normal distribution using Excel for performing a t-test?
117477
Paired versus unpaired t-test
125189
When conducting a t-test why would one prefer to assume (or test for) equal variances rather than always use a Welch approximation of the df?