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250 Inference app
Results The results are:
One-Sample T-Test
Menu name T-Test: 1
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,
0
.
You select one of the following alternative hypotheses
against which to test the null hypothesis:
H
0
: <
0
H
0
: >
0
H
0
: ≠
0
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 level that
you supplied
Critical Difference in the proportion of
successes in the two samples
associated with the level you
supplied
p
ˆ
p
ˆ