Ztest_2Prop; Ztest_2Samp - Texas Instruments TI-Nspire Reference Manual

zTest_2Prop

x1 n1 x2 n2
zTest_2Prop , , , [,
Computes a two-proportion z test. A summary of results is stored in
the stat.results variable. (See page 97.)
x1 and x2 are non-negative integers.
: p1 = p2, against one of the following:
Test H
0
: p1 > p2, set Hypoth>0
For H
a
: p1 ƒ p2 (default), set Hypoth=0
For H
a
: p < p0, set Hypoth<0
For H
a
For information on the effect of empty elements in a list, see "Empty
(void) elements" on page 131.
Output variable
stat.z
stat.PVal
Ç
stat. 1
Ç
stat. 2
Ç
stat.
stat.n1, stat.n2

zTest_2Samp

s s List1
zTest_2Samp , ,
1 2
(Data list input)
s s v
1 n1
zTest_2Samp , , ,
1 2
(Summary stats input)
Computes a two-sample z test. A summary of results is stored in the
stat.results variable. (See page 97.)
m m
Test H : 1 = 2, against one of the following:
0
m m 2, set Hypoth<0
For H : 1 <
a
m ƒ m
2 (default), set Hypoth=0
For H : 1
a
m m 2, Hypoth>0
For H : 1 >
a
For information on the effect of empty elements in a list, see "Empty
(void) elements" on page 131.
Output variable
stat.z
stat.PVal
x x
stat. 1, stat. 2
stat.sx1, stat.sx2
stat.n1, stat.n2
Hypoth
]
Description
Standard normal value computed for the difference of proportions
Smallest level of significance at which the null hypothesis can be rejected
First sample proportion estimate
Second sample proportion estimate
Pooled sample proportion estimate
Number of samples taken in trials 1 and 2
List2 Freq1 Freq2 Hypoth
, [, [, [,
v
2 n2 Hypoth
, , [, ]
Description
Standard normal value computed for the difference of means
Smallest level of significance at which the null hypothesis can be rejected
Sample means of the data sequences in List1 and List2
Sample standard deviations of the data sequences in List1 and List2
Size of the samples
]]]
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