HP 39g+ - Manual (Page 125)

Inference aplet 9-11
Results The results are:
One–Proportion Z–Test
Menu name Z–Test:
1
P
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
.
You select one of the following alternative hypotheses against
which to test the null hypothesis:
Inputs The inputs 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.
H
0
π π
0
=
H
1
:
π π
0
<
H
1
:
π π
0
>
H
1
:
π π
0
≠
Field name Definition
x Number of successes in the sample.
n Sample size.
π
 Population proportion of successes.
α
Significance level.