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Inferential Statistics and Distributions 13-25
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 25 of 36
ANOVA( (one-way analysis of variance; item F) computes a
one-way analysis of variance for comparing the means of
two to 20 populations. The
ANOVA
procedure for
comparing these means involves analysis of the variation
in the sample data. The null hypothesis H
0
:
m
1
=
m
2
=...=
m
k
is
tested against the alternative H
a
: not all
m
1
...
m
k
are equal.
ANOVA(
list1
,
list2
[
,
...
,
list20
]
)
In the example:
L
1
={7 4 6 6 5}
L
2
={6 5 5 8 7}
L
3
={4 7 6 7 6}
Input:
,
Calculated results:
Note:
SS
is sum of squares and
MS
is mean square.
ANOVA(