Tsu-2011 - ieeetsu
Tsu-2011 - ieeetsu
Tsu-2011 - ieeetsu
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amitom kriteriumis mniSvneloba iqneba:<br />
( n1)<br />
s<br />
<br />
2<br />
0<br />
' 2<br />
2<br />
(15 1) (11.2)<br />
TV . . 27.44 .<br />
2<br />
8<br />
vinaidan, kritikuli mniSvneloba vardeba kritikul areSi<br />
( 27.44 [21.0641, )), amitom H<br />
0<br />
unda ukuvagdoT, anu Cven gvaqvs sakmarisi<br />
safuZveli, raTa CavTvaloT, rom populaciis standartuli gadaxra metia<br />
8-ze.<br />
magaliTi 3. sigaretis kompanias surs Seamowmos hipoTeza, rom mis<br />
sigaretSi nikotinis Semcvlelobis dipersia aris 0.644. nikotinis Semcvleloba<br />
izomeba miligramebSi da igulisxmeba, rom is normalurad ganawilebulia.<br />
20 sigaretisgan aRebuli SerCevis Sesworebuli standartuli<br />
gadaxraa 1 miligrami. 0.05 mniSvnelovnebis doniT gvaqvs Tu ara sakmarisi<br />
safuZveli uarvyoT kompaniis hipoTeza?<br />
amoxsna. CamovayaliboT ZiriTadi da alternatiuli hipoTezebi:<br />
H0 : D 0.644 , H1 : D 0.644 . am SemTxvevaSi saqme gvaqvs ormxriv kriteriumTan.<br />
0.05 -isa da Tavisuflebis n1 19 xarisxisaTvis xi<br />
kvadrat ganawilebis zeda kritikuli weertilebis cxrilidan vpoulobT,<br />
2 2<br />
rom kritikuli mniSvnelobebia: n 1, /2<br />
19,0.025 32.852 da<br />
2 2<br />
n 1,1 <br />
/2<br />
19.0.975 8.907 . kriteriumis mniSvneloba ki iqneba:<br />
( n1)<br />
s<br />
<br />
2<br />
0<br />
' 2<br />
2<br />
(20 1) (1)<br />
TV . . 29.5 .<br />
0.644<br />
kriteriumis mniSvneloba moTavsebulia or kritikul mniSvnelobas<br />
Soris (8. 907 < 29.5 < 32.852), anu is ar vardeba kritikul areSi. amitom<br />
H<br />
0<br />
ar unda ukuvagdoT. Sesabamisad, Cven ara gvaqvs sakmarisi safuZveli<br />
uarvyoT kompaniis mosazreba.<br />
magaliTi 4. vipovoT P -mniSvneloba, Tu kriteriumis mniSvneloba xi<br />
kvadrat ganawilebisaTvis aris 19.274, SerCevis moculobaa 8 da kriteriumi<br />
marjvena calmxrivia.<br />
amoxsna. xi kvadrat ganawilebis zeda kritikuli wertilebis cxrilSi<br />
Tavisuflebis 817-is toli xarisxis gaswvriv movZebnoT iseTi<br />
ori mniSvneloba, romelTa Soris vardeba (moeqceva) 19.274. es mniSvnelobebia:<br />
18.475 da 20.278. SevxedoT pirvel striqons da vipovoT -s ori mni-<br />
Svneloba, romelic Seesabameba 18.475-sa da 20.278-s. es mniSvnelobebia: 0.01<br />
da 0.005. Sesabamisad, P -mniSvneloba swored maT Sorisaa moTavsebuli:<br />
0.005 < P -mniSvneloba < 0.01. magaliTad, Tu 0.01 , maSin Cven unda ukuvagdoT<br />
H<br />
0<br />
, radganac P -mniSvneloba naklebia 0.01; magram, Tu 0.001 ,<br />
maSin H0<br />
-is uaryofis safuZveli ara gvaqvs, radganac P -mniSvneloba ><br />
0.005 > 0.001.<br />
SevniSnavT, rom aq kalkulatoriT gamoTvlili P -mniSvneloba aris<br />
0.007.<br />
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