I kalkuli yexesha eliphakathi
Yenza umgama woxanduva wokuba nguphakathi ukusuka kumzekelo ophakathi, SD nobungakanani.
Iinketho ze projekti
Malunga nale Calculator
confidence interval is a measure of the probability that a sample will capture the true population mean. It is a measure of the probability that a sample will capture the true population mean. It is a measure of the probability that a sample will capture the true population mean. It is a measure of the probability that a sample will capture the true population mean. It is a measure of the probability that a sample will capture the true population mean. It is a measure of the probability that a sample will capture the true population mean. It is a measure of the probability that a sample will capture the true population mean.Work
Imibuzo ebuza rhoqo
Yintoni ethetha ukuba i-95% confidence interval?
Oku kuthetha ukuba ukuba uphinde uthathe isampuli amaxesha amaninzi kwaye uvule umda ixesha ngalinye, malunga ne 95% yale mimandla izakuqulathela umda woqoqosho. Oku akuthethi ukuba kukho 95% ukwenzeka ukuba umda ukhona kulo mda omnye.
Ndifanele ndisebenzise ixesha lokuphumla le-t ntoni?
Sebenzisa umda we t xa umzekelo uncinci (ungaphantsi kwe 30) kwaye utshintsho lomlinganiselo woqoqosho aluziwa. Unikezelo lwe t lunomsila onzima, unika umda obanzi, okhuselekileyo ngakumbi kunale z- esekelwe enye.
Yintoni umda wemposiso kwixesha loxolo?
Umda wemposiso ngububanzi obuphakathi koluhlu, z * · (σ / √n). Udibanisa nokukhupha ukusuka kwisampuli ephakathi ukuze ufumane umda ophezulu nophantsi, ngoko umda omncinci uthetha ubalo oluchanekileyo.
Ndiyenza njani ithuba lokhuseleko elifutshane?
Ubungakanani bemboniselo
Ingaba umphakamo ophezulu woxanduva uyenza ithuba libanzi?
Ewe. Ukufuna uxanduva oluninzi lusebenzisa ixabiso elibalulekileyo elikhulu z *, ngoko u99% wokungafani kubanzi kune 95% wokungafani owenziwe kwi data efanayo. Kusoloko kukho urhwebo phakathi koxanduva kunye nobuchanekileyo.
Yintoni impazamo eqhelekileyo?
Imposiso eqhelekileyo yindawo eqhelekileyo yokutshintsha yahlulahlulwe yisiseko esikwere sobungakanani besampuli (σ / √n). Ilinganisela ukuba isampuli iphakathi ngokwayo ingatshintsha njani ukusuka kumlinganiselo ukuya kumlinganiselo, kwaye iyi block yokwakha yomda wemposiso.
API — sebenzisa le calculator ukusuka kwikhowudi
Nceda le kalkulator njengendawo esemva ye-JSON ekhululekileyo - akukho qhosha lifunekayo. Thumela amaxabiso endawo engezantsi njengeparameter yombuzo okanye i-JSON. Funda i-API epheleleyo →
Incopho yesiphelo
GET https://calculator.free/api/v1/confidence-interval/curl
curl "https://calculator.free/api/v1/confidence-interval/?mean=100&sd=15&n=50&conf=1.96"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/confidence-interval/?" + new URLSearchParams({
"mean": "100",
"sd": "15",
"n": "50",
"conf": "1.96"
}));
const data = await r.json();
console.log(data.results);IiNtlanganiso zeNtlanganiso yeNtlanganiso