( ) .
(w1, w2), : Wm 1, Wm 2.
, w2 , w1. :
( ):
SS, , w2 , ; :
SS = S 1 S 2; fSS = fS 1 fS 2 = m 2 m 1.
.
s2(W), , w2, F - () :
.
s2(W) , :
.
:
,
, w2, , w2 w1. , w2, ; , w1.
, , .
, . 3.2 ( 7) . Wm= a 0 + a 1 x + a 2 x 2 + a 3 x 3.
:
Wm = 0,878 + 4,98 x 0,768 x 2 + 0,032 x 3.
:
.
, S 2 = 4,393.
SS = S 2 S 3 = 0,144; fSS = m 3 m 2 = 4 3 = 1.
.
.
() f = n m 2 1 = 10 3 1 = 6 a = 0,05
.
, , , , , . .
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7. .
4.
11