One-proportion z-test – HP 40gs User Manual
Page 136
11-10
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
:
π π
0
<
H
1
:
π π
0
>
H
1
:
π π
0
≠
hp40g+.book Page 10 Friday, December 9, 2005 1:03 AM