Hp 39g Graphing Calculator Instrukcja Użytkownika Strona 126

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Results
The results are:
Result
Description
TestZ Z-test statistic.
Prob
Probability associated with the
Z-Test statistic.
Critical Z
Boundary values of Z associated
with the a level that you supplied.
Critical X
Boundary values of T required by
the a value that you supplied.
Two-Sample Z-Test
Menu name
Z-Test: |al-|a2
On the basis of two samples, each from a separate population,
this test measures the strength of the evidence for a selected
hypothesis against the null hypothesis. The null hypothesis is
that the mean of the two populations are equal (Hq: |Ij = ^2)-
You select one of the following alternative hypotheses against
which to test the null hypothesis:
//,:Pi <P2
>P2
//] :|ij fl2
Inputs
The inputs are:
Field name
Definition
I'l
Sample 1 mean.
x2
Sample 2 mean.
nl
Sample 1 size.
n2
Sample 2 size.
a!
Population 1 standard deviation.
g2
Population 2 standard deviation.
a
Significance level.
9-10
Inference aplet
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