HP Prime Graphing Wireless Calculator - Manual (Page 83)

Inference app 79
Inputs The inputs are:
Results The results are:
One-Proportion Z-Test
Menu name Z-Test: 1 π
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 is an assumed value,
Η
0
: π = π
0
.
You select one of the following alternative hypotheses
against which to test the null hypothesis:
H
0
: π < π
0
H
0
: π > π
0
H
0
: π ≠ π
0
Field name Definition
Sample 1 mean
Sample 2 mean
n
1
Sample 1 size
n
2
Sample 2 size
σ
1
Population 1 standard deviation
σ
2
Population 2 standard deviation
α Significance level
x
1
x
2
Result Description
Test Z Z-Test statistic
Test Difference in the means associ-
ated with the test Z-value
P Probability associated with the
Z-Test statistic
Critical Z Boundary value(s) of Z associated
with the α level that you supplied
Critical Difference in the means associ-
ated with the α level you supplied
Δ x
Δ x