Mann-Whitney U test

Parameter

Week

P^a

Gross Alpha

January 7

0.10

January 14

0.17

January 21

0.32

January 28

0.32

February 4

1.00

February 11

0.57

February 18

0.48

February 25

0.67

March 4

0.86

March 11

0.62

March 18

0.89

March 25

0.48

Gross Beta

January 7

0.12

January 14

0.39

January 21

0.12

January 28

0.67

February 4

0.12

February 11

0.20

February 18

0.57

February 25

0.06

March 4

0.32

March 11

0.48

March 18

0.57

March 25

0.89

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