Fourth Quarter 2008
INL Quarterly Site Environmental Report
Return to Index

APPENDIX D
STATISTICAL ANALYSIS RESULTS

TABLE D-1    Results of the Kruskal-Wallace statistical test between INL Site, Boundary and Distant sample groups by month.

Parameter

Pa

Gross Alpha

Quarter

0.79

October

0.69

November

0.68

December

0.76

Gross Beta

Quarter

0.03

October

0.52

November

0.08

December

0.08

a.     A 'p' value greater than 0.05 signifies no statistical difference between data groups.

 

 

 

 

 

 

 

 

 

TABLE D-2     Statistical difference in weekly gross alpha and gross beta concentrations measured at Boundary and Distant locations.

 

 

Mann-Whitney U test

Parameter

Week

Pa

Gross Alpha

 

October 1

0.39

 

October 8

0.94

 

October 15

0.26

 

October 22

0.87

 

October 29

0.78

 

November 5

0.02

 

November 12

0.72

 

November 19

0.43

 

November 26

0.78

 

December 3

0.57

 

December 10

0.20

 

December 17

0.67

 

December 24

0.68

 

December 31

0.52

Gross Beta

 

October 1

0.67

 

October 8

0.94

 

October 15

0.94

 

October 22

0.52

 

October 29

0.25

 

November 5

0.48

 

November 12

0.00

 

November 19

0.05

 

November 26

0.35

 

December 3

0.37

 

December 10

0.05

 

December 17

0.28

 

December 24

0.42

 

December 31

0.05

a.     A 'p' value greater than 0.05 signifies no statistical difference between data groups.

 

 

Fourth Quarter 2008
INL Quarterly Site Environmental Report
Return to Index