Mann-Whitney U test

Parameter

Week

P^a

Gross Alpha

January 6

0.78

January 13

0.62

January 20

0.43

January 27

0.57

February 3

0.81

February 10

0.67

February 17

0.89

February 24

0.39

March 3

0.89

March 10

0.67

March 17

0.06

March 24

0.94

March 31

0.39

Gross Beta

January 6

0.12

January 13

1.00

January 20

0.78

January 27

0.02

February 3

0.06

February 10

0.39

February 17

1.00

February 24

0.57

March 3

0.78

March 10

0.12

March 17

0.83

March 24

0.62

March 31

0.48

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