Ztest; Ztest_1Prop - Texas Instruments TI-NSPIRE Reference Manual

Output variable
stat.ME
x x
stat. 1, stat. 2
s s
stat. x1, stat. x2
stat.n1, stat.n2
stat.r1, stat.r2

zTest

m s
0 List Freq Hypoth
zTest , , ,[ [,
(Data list input)
m s v
0 n Hypoth
zTest , , , [, ]
(Summary stats input)
Performs a z test with frequency freqlist. A summary of results is
stored in the stat.results variable. (See page 76.)
m m
Test H0: = 0, against one of the following:
m m
Hypoth < 0 for Ha:
< 0
Hypoth = 0 for Ha: m ƒ m
0 (default)
Hypoth > 0 for Ha: m m
> 0
Output variable
stat.z
stat.P Value
x
stat.
stat.sx
stat.n

zTest_1Prop

p0 x n Hypoth
zTest_1Prop , , [,
Computes a one-proportion z test. A summary of results is stored in
the stat.results variable. (See page 76.)
Test H0: p = p0 against one of the following:
Hypoth > 0 for Ha: p > p0
ƒ
Hypoth = 0 for Ha: p p0 (default)
Hypoth < 0 for Ha: p < p0
Output variable
stat.p0
stat.z
stat.PVal
92
Description
Margin of error.
Sample means of the data sequences from the normal random distribution.
Sample standard deviations for List 1 and List 2.
Number of samples in data sequences.
Known population standard deviations for data sequence List 1 and List 2.
]]
Description
x N m s
( 0) / ( / sqrt(n))
Least probability at which the null hypothesis can be rejected.
Sample mean of the data sequence in List.
Sample standard deviation of the data sequence. Only returned for Data input.
Size of the sample.
]
Description
Hypothesized population proportion.
Standard normal value computed for the proportion.
Least probability at which the null hypothesis can be rejected.
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