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TI-83 Plus Inferential Statistics and Distributions 396
Z
.
Test
Z
.
Test
(one-sample
z
test; item
1
) performs a hypothesis test for a single
unknown population mean
m
when the population standard deviation
s
is
known. 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:
L1={299.4 297.7 301 298.9 300.2 297}
Data Stats
Input:
,,