public static tTestTwoSample ( number $μ₁, number $μ₂, number $n₁, number $n₂, number $σ₁, number $σ₂, number $Δ ) : array | ||
$μ₁ | number | Sample mean of population 1 |
$μ₂ | number | Sample mean of population 2 |
$n₁ | number | Sample size of population 1 |
$n₂ | number | Sample size of population 1 |
$σ₁ | number | Standard deviation of sample mean 1 |
$σ₂ | number | Standard deviation of sample mean 2 |
$Δ | number | (Optional) hypothesized difference between the population means (0 if testing for equal means) |
Résultat | array | [ t => t score p1 => one-tailed p value p2 => two-tailed p value ] |