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246 Inference app
The HP Prime hypothesis tests use the Normal Z-
distribution or the Student’s t-distribution to calculate
probabilities. If you wish to use other distributions, please
use the Home view and the distributions found within the
Probability category of the Math menu.
One-Sample Z-Test
Menu name Z-Test: 1
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 population mean equals a specified value,
.
You select one of the following alternative hypotheses
against which to test the null hypothesis:
H
0
: <
0
H
0
: >
0
H
0
: ≠
0
Inputs The inputs are:
Field name Definition
Sample mean
n Sample size
0
Hypothetical population mean
Population standard deviation
Significance level
x