Hp 39g Graphing Calculator Manual de usuario Pagina 130

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Results The results are:
Result Description
Test T
T-Test statistic.
Prob
Probability associated with the
T-Test statistic.
Critical T
Boundary value of T associated
with the a level that you supplied.
Critical 1
Boundary value of .v required by
the 0. value that you supplied.
Two-Sample T-Test
Menu name
T-Test: |al - ¡X2
The Two-sample T-Test is used when the population
standard deviation is not known. On the basis of statistics
from two samples, each sample from a different population,
this test measures the strength of the evidence for a selected
hypothesis against the null hypothesis. The null hypothesis is
that the two populations means are equal {Hq: pj = ^2)-
You select one of the following alternative hypotheses against
which to test the null hypothesis
<^2
>|i2
//j ^ ^^2
9-14
Inference aplet
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