Hp Prime Graphing Wireless Calculator Manuel d'utilisateur Page 85

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Inference app 81
Results The results are:
One-Sample T-Test
Menu name T-Test: 1 μ
This test is used when the population standard deviation is
not known. 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 sample mean has some assumed
value, Η
0
:μ = μ
0
.
x
2
Sample 2 success count
n
1
Sample 1 size
n
2
Sample 2 size
α Significance level
Field name Definition
Result Description
Test Z Z-Test statistic
Test Difference between the
proportions of successes in the
two samples that is associated
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 proportion of
successes in the two samples
associated with the α level you
supplied
Δ
p
ˆ
Δ
p
ˆ
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