350 meters from Inca GZ. The simple means and standard deviations of the ratios in each cluster
are presented below.* The three means were compared using t-tests, and found to be statistically
different at the 90% significance level.
The computed total transuranics values were used to derive estimates and upper bounds of quarter
hectare and half hectare average concentrations.
Mean Ratio
1
2
9.10
7.80
3
12
CLUSTER 1
c---4
e!
{°
X = CLUSTER MEAN
] = STANDARD ERROR OF
CLUSTER MEAN
~T
e
|.
|
le
1.28
CLUSTER 2
i¢
10 —
|
|
°
[
yo Lt at
i
I.
|
e i
i
t-——4
bo
i
°
|
I
e
l
Bop
| pS "
i
|
|
_
|
I
|
j
|
|
|
|
|
rc
CLUSTER 3
|
.«
le
ls
|
l
>
|
*!
4
|
2|
1.13
2.18
4.10
13
E
Standard Deviation
|
|
|
|
|
|
Cluster
|
qT
I
j
oT
q
100
200
300
400
500
600
SAMPLE DISTANCE FROM INCA GZ (METERS)
hn,
FIGURE 8-2-1. PEARL SOIL SAMPLE DATA, TN 2.0-A
*This method of estimating the ratio and error was later replaced by a method based on more
accurate assumptions as described in Tech Note 2.2-A.
B-2-3