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Summary STA2020F - Week 2 (ANOVA)
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Comprehensive notes of week 2 in STA2020F
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, Week 2-> SSFS2, =s
BUT
:. MS S2
=
BEFORE: We used an F-testfor HO: OP 62 =
B we used F* = S
NOW:We can use a for
F-cost Ho:M1 M2...
=
Mebecause
=
of
is
test-stat now;
*
Mstreat
I
S?
=
= treat
Ms resid sh resid
Can F*< I?
-Yes but
very unlikely
would imply that
var due to resid. error var. due to treatment
~
If F*<1, no need for F-test-> Ho
accept
Completely randomised block design
> An experimental design where the treatments are
allocated to the experimental units completely atrandom
-> One independentvariable treatment
-> each experimental is
unit allocated to
only one one
treatment
level/ group
-> experimental units are assumed to be identical except
for the applied
treatment
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