From: t-tests, non-parametric tests, and large studies—a paradox of statistical practice?
Gamma distributions | Lognormal distributions | ||||||||
---|---|---|---|---|---|---|---|---|---|
Skewness | Skewness | ||||||||
Std.ratio | 1.0 | 2.0 | 3.0 | 4.0 | 1.0 | 2.0 | 3.0 | 4.0 | |
1.05 | 0.50 | 0.51 | 0.54 | 0.58 | 0.50 | 0.51 | 0.51 | 0.51 | |
1.10 | 0.51 | 0.52 | 0.56 | 0.61 | 0.51 | 0.51 | 0.52 | 0.52 | |
1.15 | 0.51 | 0.53 | 0.57 | 0.62 | 0.51 | 0.52 | 0.53 | 0.53 | |
1.20 | 0.52 | 0.54 | 0.58 | 0.64 | 0.52 | 0.53 | 0.53 | 0.54 | |
1.25 | 0.52 | 0.54 | 0.59 | 0.64 | 0.52 | 0.53 | 0.54 | 0.56 | |
1.30 | 0.52 | 0.55 | 0.60 | 0.66 | 0.52 | 0.53 | 0.55 | 0.55 | |
1.40 | 0.53 | 0.56 | 0.61 | 0.67 | 0.52 | 0.54 | 0.56 | 0.57 | |
1.50 | 0.53 | 0.57 | 0.62 | 0.68 | 0.53 | 0.55 | 0.56 | 0.58 |