Appendix D-2

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

Mann-Whitney U Test^a
Parameter	Week	p^b
Gross Alpha
	January 2^nd	0.39
	January 9^th	0.89
	January 16^th	0.12
	January 23^rd	0.47
	January 30^th	0.39
	February 6^th	0.78
	February 13^th	0.78
	February 20^th	0.32
	February 27^th	0.48
	March 6^th	0.75
	March 13^th	0.14
	March 20^th	0.15
	March 27^th	0.94
Gross Beta
	January 2^nd	0.57
	January 9^th	0.57
	January 16^th	0.89
	January 23^rd	0.03
	January 30^th	0.06
	February 6^th	0.39
	February 13^th	0.39
	February 20^th	0.48
	February 27^th	0.06
	March 6^th	0.34
	March 13^th	1.00
	March 20^th	0.57
	March 27^th	0.94
a. See the Determining Statistical Differences of the Helpful Information section for details on the Mann Whitney U test. b. A ‘p’ value greater than 0.05 signifies no statistical difference between data groups.