Selecting An Alternative Hypothesis (Ƒ < >); Selecting The Pooled Option - Texas Instruments TI-83 Manual Book

Selecting an Alternative Hypothesis (ƒ < >)
Most of the inferential stat editors for the hypothesis tests prompt you to
select one of three alternative hypotheses.
The first is a
The second is a
2.SampTTest
The third is a
2.PropZTest
To select an alternative hypothesis, move the cursor to the appropriate
alternative, and then press Í.

Selecting the Pooled Option

(
Pooled 2.SampTTest
variances are to be pooled for the calculation.
Select if you do not want the variances pooled. Population
No
variances can be unequal.
Select
Yes
assumed to be equal.
To select the
Pooled
Í.
TI-83 Plus Inferential Statistics and Distributions
alternative hypothesis, such as
ƒ
alternative hypothesis, such as
<
.
alternative hypothesis, such as
>
.
and
2.SampTInt
if you want the variances pooled. Population variances are
option, move the cursor to
mƒm
p1>p2
only) specifies whether the
, and then press
Yes
for the
Z.Test
0
for the
m1<m2
for the
.
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