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Results
Two-Sample Z-Test
Menu name
Inputs
Inference app
The results are:
Result
Test Z
Test
x
P
Critical Z
Critical
x
Z-Test:
–
1
2
On the basis of two samples, each from a separate
population, this test measures the strength of the evidence
for a selected hypothesis against the null hypothesis. The
null hypothesis is that the means of the two populations
are equal,
:
0
1
You select one of the following alternative hypotheses to
test against the null hypothesis:
The inputs are:
Field name
x
1
x
2
n
1
n
2
Description
Z-test statistic
Value of
associated with the
x
test Z-value
Probability associated with the
Z-Test statistic
Boundary value(s) of Z
associated with the level that
you supplied
Boundary value(s) of
required by the value that you
supplied
=
.
2
H
:
<
1
1
2
H
:
>
1
1
2
H
:
≠
1
1
2
Definition
Sample 1 mean
Sample 2 mean
Sample 1 size
Sample 2 size
x
223
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