Musiyano pakati pe stratified sampling uye cluster sampling

Kugadziridzwa kwekupedzisira: 26/04/2023
Munyori: Sebastian Vidal

Nhanganyaya

Munyika Mune nhamba, zvakajairika kushandisa sampling matekiniki kuwana data inomiririra yehuwandu. Maitiro maviri akajairika ndeanoti stratified sampling uye cluster sampling. Ose ane hunhu hwawo uye anoshandiswa mumamiriro akasiyana. Tevere, tichaona kuti nzira yega yega inosanganisirei uye kuti misiyano iripi pakati payo.

Stratified sampling

Stratified sampling inosanganisira kupatsanura huwandu hwevanhu muzvikamu zvakasiyana kana zvidimbu, uyezve kushandisa nzira yakapusa yekuenzanisira kune yega yega strata. Nenzira iyi, inove nechokwadi chekuti stratum yega yega inomiririrwa mumuenzaniso, uye yakanyatsojeka uye homogeneous sampu inogona kuwanikwa.

Muenzaniso

Ngatitii tinoda kuita chidzidzo pamusoro pezvinoda zvemitambo muguta. Tinogona kupatsanura huwandu hwevanhu muzvikamu zvakasiyana zvichienderana nezera uye murume kana mukadzi. Zvadaro, isu tinoshandisa nyore nyore sampling mune imwe neimwe yeiyi strata kuti tiwane mumiriri wemuenzaniso wehuwandu hwevanhu.

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Cluster sampling

Mu cluster sampling, zvikwata zvevanhu zvakakamurwa kuita mapoka kana masumbu, uye nhamba yakatarwa yemapoka aya inosarudzwa zvisina tsarukano kuti iiswe mumuenzaniso. Zvadaro, zvikamu zvose kubva kumapoka iwayo akasarudzwa anotorwa kuti aite muenzaniso. Iyi nzira inobatsira kana data isingawanikwe kune mumwe nemumwe muhuwandu, asi inowanikwa kune rimwe nerimwe boka.

Muenzaniso

Tomboti tinoda kuita ongororo yemhando yedzidzo mudunhu. Panzvimbo pekuenzanisira vadzidzi vega, tinokwanisa kusarudza zviverengero zvakati zvezvikoro mudunhu uye tozotora muenzaniso wevadzidzi vezvikoro izvozvo.

Misiyano pakati pe stratified sampling uye cluster sampling

  • Stratified sampling inopatsanura huwandu hwevanhu muzvikamu zvakasiyana, ukuwo cluster sampling inopatsanura vanhu kuita mapoka kana zvikwata.
  • Stratified sampling inoshandisa nzira yakapusa yesampling mune yega yega, ukuwo cluster sampling inosarudza mapoka ekuisa mumuenzaniso.
  • Stratified sampling inoshandiswa kana ichidikanwa kuwana homogeneous uye inomiririra sampu yeimwe neimwe stratum, nepo cluster sampling inobatsira kana data isingawanikwe yega, asi inowanikwa neboka.
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Mhedziso

Muchidimbu, stratified sampling uye cluster sampling nzira dzinobatsira munyika yehuwandu kuwana masampula anomiririra ehuwandu. Ose ane hunhu hwawo uye anoshandiswa mumamiriro akasiyana, saka zvakakosha kuti unzwisise kuti tekiniki yega yega inosanganisirei uye kuti misiyano iripi pakati pawo.