, ,
X1
X2 .
:
=225,72 + 0,263 1 - 9,085 2.
a, b1, b2 :
225,72; 0,263; -9,085.
F- :
,
- ;
- ;
- .
F . F- , . . F(0,05; 2; 45)=3,23.
F=173,84 6,78E-10, 5%.
. -
.
88% .
.
, .
t-:
tb0 = 4,32; tb1 = 17,299, tb2 = -3,85.
. .
t- :
4,32 > 2,021, b0;
17,299 > 2,021, b1 , X1 Y;
|-3,85| > 2,021, b2 , X2 Y.
, , 88%. .
, . X12 X22.
:
=479,86 - 0,019 1 - 5,168 2 + 0,00004 12 + 0,056 22.
F- :
,
- ;
- ;
- .
F . F- , . . F(0,05; 4; 45)= 2,61.
|
|
F = 92,57 1,5-20, 5%.
. -
.
89% .
.
, .
t-:
tb0 = 3,033; tb1 = -0,122, tb2 = -0,283, tb3 = 1,906, tb4 = 1,187.
. .
t- :
, . .