Tsu-2011 - ieeetsu

2
19,0.01
36.2
2 2
(20 1) (1.6) (20 1) (1.6)
( , ) , anu (1.5,5.5)
32.852 8.907
amrigad, Cven SegviZlia 95%-iani saimedoobiT vigulisxmoT, rom
sigaretSi nikotinis Semcvlelobis realuri dispersia moTavsebulia 1.5
miligramsa da 5.5 miligrams Soris.
ndobis intervali standartuli gadaxrisaTvis iqneba:
( 1.5, 5.5), anu (1.2,2.3) .
maSasadame, sigaretSi nikotinis Semcvlelobis realuri standartuli
gadaxris 95%-iani ndobis intervalia (1.2mg, 2.3mg).
magaliTi 2. CavTvaloT, rom xmauri Sveulmfrenis kabinaSi, garkveul
reJimSi momuSave Zravis dros, normaluri kanoniT ganawilebuli Sem-
TxveviTi sididea. SemTxveviT SerCeul 20 SveulmfrenSi gazomes xmis done
(decibalebSi). xmis donis Sesworebuli SerCeviTi dispersia aRmoCnda
22.5-is toli. vipovoT ndobis intervali, romelic faravs mocemuli
tipis Sveulmfrenebis kabinaSi xmauris sididis ucnob standartul gadaxras
98%-iani saimedoobiT.
amoxsna. Tavisuflebis 19-is toli xarisxiTa da (1 0.98)/ 2 0.01
albaTobis saSualebiT 2 –is ganawilebis cxrilidan vpoulobT sidides:
. analogiurad, (1 + 0.98)/2 = 0.99 albaTobis saSualebiT vpoulobT:
2 19,0.99
7.63 . Sesabamisad, ucnobi saSualos SemTxvevaSi standartuli
gadaxris ndobis intervalis
'2 '2
( n 1) S ( n 1)
S
,
2 2
n 1, /2
n1,1 /2
formulis gamoyenebiT vRebulobT, rom saZiebeli ndobis intervalia:
(3.44, 7.49).
amocanebi
1. cxrilis saSualebiT ipoveT
109
2
marcx.
da
2
marjv.
, Tu: a). 0.05 ,
n 16 ; b). 0.1, n 5 ; g). 0.01, n 23 ; d). 0.05 , n 29 ; e). 0.1, n 14 .
qvemoT moyvanil amocanebSi igulisxmeT, rom yvela sidide ganilebulia
normalurad:
2. aageT 95%-iani ndobis intervali elementis sicocxlis xangr-
Zlivobis dispersiisa da standartuli gadaxrisaTvis, Tu cnobilia, rom
20 elementiani SerCevis Sesworebuli standartuli gadaxraa 1.7 Tve.
3. aageT 90%-iani ndobis intervali avtobusis usafrTxoebis Sesamowmeblad
saWiro drois dispersiisa da standartuli gadaxrisaTvis, Tu
cnobilia, rom 20 avtobusis usafrTxoebis Sesamowmeblad saWiro drois
Sesworebuli standartuli gadaxraa 6.8 wT.
4. aageT 99%-iani ndobis intervali Zravis zeTis 25 litriani konteineris
wonis dispersiisa da standartuli gadaxrisaTvis, Tu
cnobilia, rom 14 konteinerisaTvis Sesworebuli dispersia aris 3.3.
5. qvemoT moyvanilia vaSlis wvenSi Saqris Semcveloba gramebSi: