2010-05-25_REVISION - C1981008 ‎(28)‎

• Permit No: C1981008
• IBM Index Class Name: Revision
• Doc Date: 5/25/2010
• Doc Name: Response 1 Revised Pages Section 2.05.4‎(2)‎‎(e)‎
• Type & Sequence: PR6
• Media Type: D
• Archive: No

b \� �
Where:
SEsat = Satterthwaite- approximated Standard Error
s = bond release site (reclaimed site) sample standard deviation
sref = reference area sample standard deviation
nbr = bond release site (reclaimed site) sample size
n fef = reference area sample size
Next, the Satterthwaite degrees of freedom are calculated as
_ ( S 4
O�a 4
\ + \ (aj ` ref) )
n� —1 n ref -1
Where:
dfsat = Satterthwaite- approximated degrees of freedom
Lastly, a one -sided reverse -null t -test with alpha = 0.20 is used as follows:
PR -06 May 2010 2.05.4(2)(e) - 45