First Quarter 2007
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

0.97

January

0.73

February

0.39

March

0.05

Gross Beta

Quarter

0.53

January

0.09

February

0.78

March

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

 

January 3rd

1.00

 

January 10th

0.48

 

January 17th

0.57

 

January 24th

0.25

 

January 31st

1.00

 

February 7th

0.07

 

February 14th

0.57

 

February 21st

0.25

 

February 28th

0.67

 

March 7th

0.32

 

March 14th

0.00

 

March 21st

0.26

 

March 28th

0.48

Gross Beta

 

January 3rd

0.20

 

January 10th

0.15

 

January 17th

0.32

 

January 24th

1.00

 

January 31st

0.28

 

February 7th

0.03

 

February 14th

0.89

 

February 21st

0.78

 

February 28th

0.43

 

March 7th

0.15

 

March 14th

0.48

 

March 21st

0.63

 

March 28th

0.05

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

 

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