Texas Instruments TI-83 - Page 249

Inferential Statistics and Distributions 13-11
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 11 of 36
T
.
Test (one-sample
t
test; item 2) performs a hypothesis
test for a single unknown population mean
m
when the
population standard deviation
s
is unknown. It tests the
null hypothesis H
0
:
m
=
m
0
against one of the alternatives
below.
•
H
a
:
mƒm
0
(
m
:
ƒm
0
)
•
H
a
:
m
<
m
0
(
m
:<
m
0
)
•
H
a
:
m
>
m
0
(
m
:>
m
0
)
In the example:
TEST={91.9 97.8 111.4 122.3 105.4 95}
Data Stats
Input:
,,
Calculated results:
,,
Drawn results:
T
.
Test