82
Table 11.
Parametric and non-parametric tests of significance of the
differences in the specific activity of zinc-65 between tissues
and between areas in goatfish from Rongelap Atoll Lagvon.
"t" Test
Rank Test
Comparison’ n ef, "t” 5h 1% Decinton? (> 5% 1% Decision
R. eyes
20
K. eyes
9
R. livers
20
K. livers
9
R. eyes
20
R. livers
20
K. eyes
9
K. livers
9
2.16 2.05 2.77 Reject(5%) 79
81
Reject
27
3.92
2.05 2.77 Reject(1%) 53
681
Reject
38
460.82
2.02
Accept
59
862
Accept
16
O.11
2.12
Accept
18
6
Accept
1.
R = Rongelap, K = Kabelle goatfish tissues.
2.
Hy! There is no difference between the means,
je
f? = Rank correlation coefficient.
A
H:
4
27
Both samples are drawn from the same population.
4
2
2