teksam bab 7 kel 3
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Kelompok 3“Asoy_Teksam”
1. HafzhAmrullah_1111094000041
2. Gusta!a"
Arum_111209400002#3. $ka %utr &_1112094000014
4. 'o( 'ur %_111209400002)
#. *! Hart"_1112094000033
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+.1*ef"s ,ampel ,stematk
,ampl"-
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,ystemat ,ampl"- merupaka" Alter"at/ la"pe"-amla" sampel ya"- sa"-at erma"/aat u"tukpe"-amla" sampel ar populas ya"- sa"-at esar.%e"-amla" sampel seara sstemats aalah suatumetoe ma"a ha"ya u"sur pertama ar sampel ya"-plh seara aak sea"- u"suru"sur sela"ut"ya plhseara sstemats me"urut suatu pola terte"tu.
%roseur"ya 5
◦ 1. ,usu" sampl"- /rame
◦ 2. Tetapka" umlah sampel ya"- "-" aml
◦
3.
Te"tuka" K 7kelas "ter(al8◦ 4. Te"tuka" a"-ka atau "omor a!al a"tara kelas "ter(al
terseut seara aak ra"om asa"ya melalu ara u"a" saa.
◦ #. atau &ulalah me"-aml sampel mula ar a"-ka atau"omor a!al ya"- terplh.
◦ :. %lhlah sea-a sampel a"-ka atau "omor "ter(al erkut"ya
Defnisi Systematic Random Sampilng( Teknik Sampling Sistematis )
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Kepala *"as %e"ka" "-"me"-etahu a-ama"a &ot(as KeraKepala ,ekolah Kaupate" Ku""-a"ya"- erumlah 1000 ora"- a" aka"me"-aml sempel 100 ora"- Kepalasekolah kemua" 'ama"ama Kepala,ekolah susu" seara alpaets lalu
plh sampel per sepuluh Kepala,ekolah u"tuk tu susu" "omor ar 1sampa 10 lalu u" u"tuk memlhsatu a"-ka ka a"-ka lma ya"- keluar
maka sampel"ya aalah "omor # 1#
Contoh Systematic RandomSampilng( Teknik Sampling Sistematis )
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Alasa" ,ampl"- sstematkmu"ul ,ampl"- sstematk mu"ul kare"aka" eerapa hal5
1. %aa pe"arka" sampel aak seerha"a setap u"t plhe"-a" me"--u"aka" tael a"-ka ra"om. ,alah satukelemaha" ar ara " aalah 5
a. ,eara teorts apala populas ers/at hetero-e"maka sampel mu"-k"ka" me"-elompok paa salahsatu karakterstk terte"tu
. ,eara operaso"al lapa"-a" sampel apatme"-elompok paa lokas terte"tu atau terapat lokassult e"-a" sampel sekt ya"- me"-akatka" ayalapa"-a" me"a t"--. Hal " ers/at "efse".
2. Karakterstk sampel harapka" ers/at represe"tat/atau me!akl karakterstk populas seh"--a harapka"sampel terplh ers/at proporso"al. *e"-a" sampl"-aak hal " sult am" terapa kare"a sa a sampelsuah me!akl karakterstk populas tetap elumproporso"al. %roporso"al art"ya umlah sampel paa
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7.2 Cara Pengambilan Sampel cakSystematic
;a-ama"a k plhalamstuasya"- erka"<,earaumumu"tuk systemat
sample areleme"arpopulas haruskura"-atausamae"-a"
7 .e 8
'ote5ktatakapatme"e"tuka"kapopulastakketahu
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+.3$stmas =atarata %opulasa" Total
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$stmas =atarata%opulas
$stmator =ataa" %opulas
$stmator >ara"s
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$?ample
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ollars8 /or 2001 /or a sample o/ 20"ustral -roups. The sample !as
selete systematally /rom the lsto/ the 140 -roups appear"- " the,tatstal Astrat /or the
@"te ,tates
$stmate the mea" "umer o/
employees per ma"u/atur"- ,B-roup a" f" a mar-" o/ error /orthe estmate.
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$stmas %opulas Total
$stmator %opulas Total
$stmator >ara"s
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+.4$stmas %opulas %ropors
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!ST"#S" PR$P$RS" P$P%&S"
&salka" kta "-" me"-etahu propors esa ya"- mempu"ya/asltas kesehata" propors pe"-a"--ur ya"- erpe"ka"
sara"a propors pe"uuk ya"- me"erta sakt T;B proporsperusahaa" e"-a" umlah te"a-a kera leh ar 100 ora"-8
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PR$P$RS
"Defnisi'&salka" C1 C2 D.C" aalah suatu populas
ata u"tuk suatu (arael kualtat/. *alampopulas erukura" ' terseut mas"-mas"-terapat '
1 '
2 D'
k eleme" ya"- termasuk
alam kate-or1 kate-or2 Dkate-orksea"-ka" '1E'2EDE'kF'. rekue"s "s
atau propors u"sur ar kate-or- alampopulas ata terseut aalah %-F'-' u"tuk
semara"- - F 12Dk. Ia alam me"-htu"- propors kate-or-tersrat suatu pa"a"-a" memlah eleme"eleme" populas me"a ua -olo"-a" yatu
ya"- err kate-or- a" uka" kate-or-.
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+.#&emlh @kura" ,ampel
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&emlh @kura" ,ampel
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+.:,stematk ,ampl"-;erula"-
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$stmas populas ratarata7sstematk sampl"- erula"-8
estmas (ara"sar 5
ma"a
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$stmas populas total7sstematk sampl"- erula"-8
$stmator arpopulas total 5
$stmator ar(ara"s 5
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BJ'TJH 5
,euah aya masuk tama" "e-ara oleh arloauka" oleh ora"- a" seora"- peaat tama" "-"memperkraka" umlah ratarata ora"- per molu"tuk lura" musm pa"as terte"tu. *a tahu ar
pe"-alama" masa lalu ah!a harus aa sektar 400mol memasuk tama" a" a "-" sampel )0mol. @"tuk me"apatka" perkraa" (ara"s ame"--u"aka" sampl"- sstematk erula"-e"-a" sepuluh sampel elapa" mol mas"-mas"-. &e"--u"aka" ata ya"- erka" paa Tael +.3 memperkraka" umlah ratarata ora"-per mol a" memperkraka" atas paa errorestmas.
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,J@,@"tuk satu sampel sstemats
Jleh kare"a tu u"tuk sampel
,epuluh a"-ka aak a"tara 1 a" #0 erkut aml5
&ol e"-a" a"-kaa"-ka " meme"tuk ttk a!al aak u"tuk sampel
sstemats. @"tuk Tael +.3 kua"ttas aalah ratarata u"tuk arspertama aalah ratarata u"tuk ars keua a" seterus"ya. $stmas
aalah
e"-a" . *e"-a" emka" estmas sta"ar error aalah
F019
Jleh kare"a tu perkraa" terak kam umlah ratarata ora"- per mol
4.1: plus atau m"us sektar 03).
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s
Keterkata" a"tara estmas (ara"s rataratapopulas systematic sampling7 8 e"-a"kluster 7pe"-elompokka"8 a" korelas.
'ote 5
&,; 5 et!ee" luster mea" sLuare
&,M 5 Mth" luster mea" sLuare
,,T 5 total sum o/ sLuares
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s
perhtu"-a" " e?el
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s
*e"-a"ara perhtu"-a" ya"- samaseelum"yaperoleh 5
&,; F ).3 &,M F 40 ,,T F ::# F 1.2# a" > F 1.2#
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s
ma"a
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s
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+.+ *skus leh la"ut te"ta"-$stmator ar >ara"s