Tsu-2011 - ieeetsu

2 SSE 21995.88
S 168.91 .
n2 13
2
2
nabiji 7. gamovTvaloT S
b 0
da S
b 1
:
2
S 2 S 2 xi
5222.24
b
168.91 219.26
0
n
SS 15268.19
,
X
Sb
S
1
SSX
2 2 1 1
168.91 0.6298 ,
268.19
Sesabamisad, Sb
1
0.7936 .
nabiji 8. gamovTvaloT determinaciis koeficienti:
2 SSE
R 1 0.648 .
SST
determinaciis koeficientis gamoTvlili mniSvneloba gviCvenebs,
rom martivi wrfivi regresiiT aixsneba saxlis gasayidi fasis variaciis
mxolod 64.8%, danarCeni 35.2% auxsneli rCeba. saWiroa SeirCes sxva
modeli (arawrfivi regresia, an mravlobiTi regresia).
magaliTi 2. magaliT 1-Si:
a). avagoT 0.05 mniSvnelovnebis donis mqone ndobis intervali
B -saTvis;
1
b). SevamowmoT H 0
: B 1
0 hipoTeza H 1
: B 1
0 alternativis winaaRmdeg.
b1
B1
amoxsna. a). cnobilia, rom T1 : t( n 2) . stiudentis zeda kriti-
S
kuli wertilebis cxrilSi vpoulobT tn
2, /2
t13,0.025 2.16 . amitom saZiebeli
ndobis intervali iqneba:
3.88 2.16 0.7936 B 3.88 2.16 0.7936 ,
anu 2.1658 B1
5.5942 .
b). T 1
statistikis gamoTvlili mniSvneloba t 1
iqneba:
b1
B1
3.88 0 t1 4.8891 t13,0.025
2.16 .
S 0.7936
b
1
amitom H 0
: B 1
0 hipoTezas uarvyofT (vinaidan | t 1
| tn
2, /2
).
amrigad, 0.05 mniSvnelovnebis doniT sarwmunoa mtkiceba, rom
saxlis fassa da mis farTobs Soris arsebobs wrfivi kavSiri.
4. mravlobiTi regresia.
ganvixiloT wrfivi mravlobiTi regresiis modeli
Y B0 B1 X1 BkX k
,
sadac Y -- damokidebuli cvladia, X1,..., X
k
-- damoukidebeli cvladebia
(maT amxsnel cvladebs, prediqtorebs, an regresorebs uwodeben), -- Se-
228
b
1
1