TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App ˆ Tests Menu 171
ANOVA
Description
2 ˆ (
Tests) Æ C:ANOVA for the TI-89
ˆ (Tests) Æ C:ANOVA for the TI-92 Plus / Voyage™ 200 PLT
ANOVA (one-way analysis of variance) 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.
Data Inputs
List 1, List 2, . . . The names of the lists containing sample data.
Stats Inputs
Group1 Stats,
Group2 Stats
, . . .
The names of the lists containing sample statistics for data sequences
from the normal random distribution. Each List x consists of {n,x_bar, sx
where n is the length of some data sequence, x_bar is the sample mean,
and
sx is the sample standard deviation.
Data and Stats Outputs
Outputs Stored to Description
F f Value of the F statistic.
P Value pval Least probability at which the null hypothesis can be rejected.
FACTOR
df df Degrees of freedom of the groups.
SS ss Sum of squares of the groups.
MS ms Mean squares for the groups.
ERROR
df dferr Degrees of freedom of the errors.
SS sserr Sum of squares of the errors.
MS mserr Mean square for the errors.
Sxp sxp Pooled standard deviation.
xbarlist* xbarlist Mean of the input of the lists.
lowlist* lowlist 95% confidence intervals for the mean of each input list.
uplist* uplist 95% confidence intervals for the mean of each input list.
* The output variables are pasted to the end of the list editor when Results!Editor option is YES,
(located in ƒ (Tools) 9:Format).
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