Inference app 111
One-Sample T-Test
Menu name T-Test: 1 μ
The One-Sample T-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
.
You select one of the following alternative hypotheses
against which to test the null hypothesis:
Inputs The inputs are:
Results The results are:
H
1
:μμ
0
<
H
1
:μμ
0
>
H
1
:μμ
0
â‰
Field name Definition
Sample mean.
s Sample standard deviation.
n Sample size.
μ
0
Hypothetical population mean.
α Significance level.
Result Description
Test T T-Test statistic.
Test
Value of associated with the
test t-value.
P Probability associated with the
T-Test statistic.
DF Degrees of freedom.