Two-Sample T-Test - HP 39g+ User Manual

Two-Sample T-Test

Menu name
Inputs
9-14
T-Test: 1 – 2
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 H : =
0
You select one of the following alternative hypotheses
against which to test the null hypothesis
The inputs are:
Field Definition
name
Sample 1 mean.
x1
Sample 2 mean.
x2
Sample 1 standard deviation.
S1
Sample 2 standard deviation.
S2
Sample 1 size.
n1
Sample 2 size.
n2
Significance level.
Check this option to pool samples
_Pooled?
based on their standard deviations.
.
H : <
1 1 2
H : >
1 1 2
H :
1 1 2
Inference aplet