Parameters

N₁

N₂

Mean

741.5

1235.535

Variance

409,767.8

121,517.5

Observations

20

20

df

19

t Stat

−5.51832

P (T ≤ t) one-tail

1.27E−05

t Critical one-tail

1.729133

P (T ≤ t) two-tail

2.53E−05

t Critical two-tail

2.093024