One–Proportion Z–Test - HP 40G User Manual

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Results
One–Proportion Z–Test
Menu name
Inputs
Inference aplet
manuals search engine
The results are:
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.
Z–Test: 1P
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
π π
equal. H =
0 0
You select one of the following alternative hypotheses against
which to test the null hypothesis:
π
H :π <
1
π
H :π >
1
:π π ≠
H
1
The inputs are:
Field name Definition
x Number of successes in the sample.
n Sample size.
π
Population proportion of successes.

α
Significance level.
0
0
0
9-11