Manual

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