Te tātaitai o te rahi tauira
Ka kitea te rahi tauira o te uiui mo te tauwāhi tōtika o te hapa.
Ka whakahōutia ngā hua i te wā e tātuhi ana.
Mo tēnei tātaitai
the sample size calculator, you can calculate the sample size for a given fraction of a population. The sample size calculator uses the standard formula n = z²·p(1 − p) / e², where z is the critical value for the confidence level, p the expected proportion and e the target margin of error as a decimal. The sample size calculator uses the standard formula n = z²·p(1 − p) / e², where z is the critical value for the confidence level, p the expected proportion and e the target margin of error as a decimal. When you use the sample size calculator, you can calculate the sample size for a given fraction of a population. The sample size calculator uses the standard formula n = z²·p(1 − p) / e², where z is the critical value for the confidence level.Worked example: When you use the sample size calculator, you can calculate the sample size for a given fraction of a population.Worked example: When you use the sample size calculator, you can calculate the sample size for a given fraction of a population.Worked example: When you use the sample size calculator, you can calculate the sample size for a given fraction of a population.Worked example: When you use the sample size calculator, you can calculate the sample size for a given fraction of a population.Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator,Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator,Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator, you can calculate the sample size.Worked example: When you use the sample size calculator, you can work with the sample size calculator.Worked example: When you use
Ko nga pātai e pā ana
He pēhea te tatau i te rahi tauira?
Ko te tātai taketake ko te n = z² · p(1 − p) / e², kei reira ko te z te uara tino hira o te whakaponotanga, p te ōwehenga i tūmanakohia, ā, ko te e te rohe o te hapa hei ira. Ka whakarurua te hua nā te mea kāore e taea e koe te whakamātautau i tētahi hautanga o te tangata.
He aha te whakarerekētanga o te iwi whānui?
Ki te iti rawa tō tātau iwi, he iti iho ngā urupare e hiahiatia ana e koe i te tātai taketake. Ko te tika n = n₀ / (1 + (n₀ − 1)/N) ka whakaiti te tauira ki te rahi o te iwi whānui N. Ko te tino hira rawa tēnei ina he hautanga nui te tauira.
He tokomaha nga tāngata e hiahiatia ana e au mō te taumata whakapono 95%?
E ai ki te rohe hapa e whakaaetia ana e koe. I te 95% o te whakapono me te rohe 5% ā, kāore he matapae o mua e hiahiatia ana e koe te 385 o ngā kaiuru; E hiahiatia ana e te rohe 3% te 1,068 me te rohe 1% e 9,604.
He aha te whakarōpūtanga o te rahi tauira?
Kāore e taea e koe te uiui i tētahi wāhanga o tētahi tangata, nō reira ka whakarurua tētahi hua hautanga ki te tau tōpū e whai ake nei. Ko te whakarurutanga ki runga i te whakarurutanga ki raro, ka whakaū te āhua o te hapa kāore i te nui ake i tō koe.
Me waiho ahau i te rahi o te iwi whānui kia pōturi?
Ka waiho i te kore (kore rānei) ina tino nui te iwi whānui, kāore rānei i te mōhiotia, e hoatu ana ki te rahi tauira paerewa "iwi mutunga kore". Ka tāurutia tētahi iwi whānui tūturu ina iti rawa te whakakoretanga i te tauira.
He pēhea te whakaiti i te rahi tauira e hiahiatia ana?
Mā te whakaae ki tētahi mokowā hapa nui ake, te whakamahi i tētahi taumata ātete iti iho, te whakarato rānei i tētahi ōrautanga i tua atu i te 50% mēnā kei a koe tētahi matapae tika. Ka whakaiti ia i te tau o ngā whakautu e hiahiatia ana e te tātai.
API — whakamahi tēnei tātaitai mai i te waehere
E kī ana tēnei tātaitai hei wāhi mutunga kore JSON - kāore he kī e hiahiatia ana. Ka tukuna ngā uara āpure i raro nei hei tohutoro pātai, JSON rānei. Ka pānui te papatono API katoa →
Whakamutunga
GET https://calculator.free/api/v1/sample-size/curl
curl "https://calculator.free/api/v1/sample-size/?conf=1.96&e=5"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/sample-size/?" + new URLSearchParams({
"conf": "1.96",
"e": "5"
}));
const data = await r.json();
console.log(data.results);Ko ngā hua he whakataunga mō te tohutohu ahuwhānui anake, ehara i te tohutohu moni, rongoā, tāke rānei.