T-test – Texas Instruments TI-84 User Manual
Page 347
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Chapter 13: Inferential Statistics and Distributions
344
Note:
All
STAT TESTS
examples assume a fixed-decimal mode setting of 4 (Chapter 1). If
you set the decimal mode to
Float
or a different fixed-decimal setting, your output may
differ from the output in the examples.
T-Test
T-Test
T-Test
T-Test
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:
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