Anova – Texas Instruments TI-83 PLUS User Manual

Page 420

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TI-83 Plus

Inferential Statistics and Distributions

417

When

LinRegTTest

is executed, the list of residuals is created and stored

to the list name

RESID

automatically.

RESID

is placed on the

LIST NAMES

menu.

Note: For the regression equation, you can use the fix-decimal mode setting to
control the number of digits stored after the decimal point (Chapter 1).
However, limiting the number of digits to a small number could affect the
accuracy of the fit.

ANOVA(

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}

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