Appendix B: Reference Information 633
2-SampÜTest for the alternative hypothesis s1 ƒ s2. Limits must satisfy the following:
where: [Lbnd,Ubnd] = lower and upper limits
The Ü-statistic is used as the bound producing the smallest integral. The remaining
bound is selected to achieve the preceding integral’s equality relationship.
2-SampTTest
2-SampTTest2-SampTTest
2-SampTTest
The following is the definition for the 2-SampTTest. The two-sample t statistic with
degrees of freedom df is:
p
2
---fxn
11n21–,–,()xd
0
Lbnd
∫fxn
11n21–,–,()xd
Ubnd
∞
∫
==
tx1x2
–
S
----------------=