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W2-1 2Samp - Coggle Diagram
W2-1 2Samp
Two independent samples comparison
Alternative hypothesis H1
Location shift model
Stochastic ordering
T-test
If variances are equal
T-test statistic
standard error
Normality assumption
for 'large' n the t-test is ok for non-normal data
Null hypothesis
F-test
Null hypothesis
F-test statistic
Normality assumption
Bartlett-test
Normality assumption
Null hypothesis
Test statistic
Levene-test
No normality assumption
Null hypothesis
Test statistic
Non-parametric test
Wilcoxon rank sum test
Alternative hypothesis
Assumptions
Test statistic
Monte Carlo simulation over exact computation
Mann-Whitney U-test
Alternative hypothesis
Estimates for probability
Test statistic