Second Quarter 2006

INL Quarterly Site Environmental Report

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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

0.0052

April

0.12

May

0.029

June

0.033

Gross Beta

Quarter

0.65

April

0.65

May

0.44

June

0.86

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

 

April 5

0.28

 

April 12

0.01

 

April 19

0.15

 

April 26

0.39

 

May 3

0.25

 

May 10

0.09

 

May 17

0.32

 

May 24

0.02

 

May 31

0.17

 

June 7

0.32

 

June 14

0.02

 

June 21

0.03

 

June 28

0.07

Gross Beta

 

April 5

0.17

 

April 12

0.23

 

April 19

1.00

 

April 26

0.77

 

May 3

0.43

 

May 10

0.67

 

May 17

0.28

 

May 24

0.09

 

May 31

0.32

 

June 7

0.12

 

June 14

0.06

 

June 21

0.10

 

June 28

0.13

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

 

 

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