n₁

n₂

$\overline{X_1}$

$\overline{X_2}$

T

Z

Tmin

31

25

20.06

8.41

−4.968

X

Tmax

15

41

352.99

248.867

+2.745

X

Tmoy

33

23

64.23

43.39

-3.573

X

Tamp

16

40

336.43

241.71

+5.842

X