204
Alphabetical Listing
zTest_2Prop
Catalog >
Computes a two-proportion
z
test. A
summary of results is stored in the
stat.results
variable. (See page 172.)
x1
and
x2
are non-negative integers.
Test H
0
:
p1
=
p2
, against one of the
following:
For H
a
:
p1
>
p2
, set
Hypoth
>0
For H
a
:
p1
≠
p2
(default), set
Hypoth
=0
For H
a
:
p < p0
, set
Hypoth
<0
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 232.
Output variable
Description
stat.z
Standard normal value computed for the difference of proportions
stat.PVal
Smallest level of significance at which the null hypothesis can be rejected
stat.
Ç
1
First sample proportion estimate
stat.
Ç
2
Second sample proportion estimate
stat.
Ç
Pooled sample proportion estimate
stat.n1, stat.n2
Number of samples taken in trials 1 and 2
zTest_2Samp
Catalog >
zTest_2Samp
σ
1
,
σ
2
,
List1
,
List2
[
,
Freq1
[
,
Freq2
[
,
Hypoth
]]]
(Data list input)
zTest_2Samp
σ
1
,
σ
2
,
v
1
,
n1
,
v
2
,
n2
[
,
Hypoth
]
(Summary stats input)
Computes a two-sample
z
test. A summary
of results is stored in the
stat.results
variable. (See page 172.)
Test H
0
:
μ
1 =
μ
2, against one of the
following:
For H
a
:
μ
1 <
μ
2, set
Hypoth
<0
For H
a
:
μ
1
≠ μ
2 (default), set
Hypoth
=0
For H
a
:
μ
1 >
μ
2,
Hypoth
>0
Содержание TI-Nspire CAS
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