Third Quarter 2004

INEEL Quarterly Site Environmental Report

Return to Index

APPENDIX D
STATISTICAL ANALYSIS RESULTS

TABLE D-1     Kruskal-Wallisa statistical results between INEEL, Boundary, and Distant LV air sample groups by quarter and by month.

Parameter

pb

Gross Alpha

Quarter

0.66

July

0.98

August

0.89

September

0.70

Gross Beta

Quarter

0.71

July

0.56

August

1.00

September

1.00

a.       See the Determining Statistical Differences of the Helpful Information section for details on the Kruskal-Wallace test.

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

 

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

Mann-Whitney U Testa

Parameter

Week

pb

Gross Alpha

 

 

 

July 7th

1.00

 

July 14th

0.25

 

July 21th

0.67

 

July 28th

0.29

 

August 4th

0.053

 

August 11th

0.10

 

August 18th

0.48

 

August 25th

0.15

 

September 1st

0.47

 

September 8th

0.77

 

September 15th

0.89

 

September 22nd

0.12

 

September 29th

0.32

Gross Beta

 

 

 

July 7th

0.62

 

July 14th

0.77

 

July 21th

0.89

 

July 28th

0.57

 

August 4th

0.48

 

August 11th

 0.00006

 

August 18th

0.57

 

August 25th

0.17

 

September 1st

0.13

 

September 8th

0.94

 

September 15th

0.17

 

September 22nd

0.39

 

September 29th

0.045

See the Determining Statistical Differences of the Helpful Information section for details on the Mann Whitney U  test.

a.          A ‘p’ value greater than 0.05 signifies no statistical difference between data groups.  Red text indicates dates with statistically significant differences.

 

 

 

 

 

Return to Index