Sampttest – Texas Instruments TI-84 User Manual

Page 636

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Appendix B: Reference Information

633

2

-

Samp

Ü

Test

for the alternative hypothesis

s

1

ƒ s

2

. 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-SampTTest

2-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

---

f x n

1

1 n

2

1

,

,

(

) x

d

0

L

bnd

f x n

1

1 n

2

1

,

,

(

) x

d

U

bnd

=

=

t

x

1

x

2

S

----------------

=

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