Exhibit 6
Wilcoxon Rank Sum Test
Sample A
Sample B
P-Value
Reject H
0
?
Confidence Level for Rejection
UQ
SQ + TQ + LQ
0.0331
Yes
5%
UQ + SQ
TQ + LQ
0.0529
Yes
10%
UQ + SQ + TQ
LQ
>0.1
No
–
Source: AlpInvest Research, authors’ calculations.