Fourth Quarter 2006
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

0.97

October

0.68

November

0.24

December

0.79

Gross Beta

Quarter

0.21

October

0.26

November

0.71

December

0.34

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 4th

0.25

 

October 11th

0.89

 

October 18th

1.00

 

October 25th

1.00

 

November 1st

0.25

 

November 8th

0.46

 

November 15th

0.89

 

November 22nd

0.89

 

November 29th

0.03

 

December 6th

0.67

 

December 13th

0.39

 

December 20th

0.67

 

December 27th

0.32

Gross Beta

 

October 4th

0.94

 

October 11th

0.25

 

October 18th

0.48

 

October 25th

0.07

 

November 1st

0.43

 

November 8th

0.02

 

November 15th

0.72

 

November 22nd

0.12

 

November 29th

0.05

 

December 6th

0.12

 

December 13th

0.25

 

December 20th

0.25

 

December 27th

0.12

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

 

Return to Index