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9-10 Inference aplet
Results The results are:
One-Proportion Z-Test
Menu name Z-Test: 1π
On the basis of statistics from a single sample, this test
measures the strength of the evidence for a selected
hypothesis against the null hypothesis. The null hypothesis
is that the proportion of successes in the two populations
is equal: H
0
: π= π
0
You select one of the following alternative hypotheses
against which to test the null hypothesis:
σ2 Population 2 standard
deviation.
α Significance level.
Field name Definition
Result Description
Test Z Z-Test statistic.
Prob Probability associated with the
Z-Test statistic.
Critical Z Boundary value of Z
associated with the α level that
you supplied.
H
1
:ππ
0
<
H
1
:ππ
0
>
H
1
:ππ
0
≠