Kalkaaliyeyaasha

dhiso kala-guurka kalsoonida ee dhexdhexaad ah oo ka mid ah tusaale ahaan dhexdhexaad ah, SD iyo cabbirka.

Xaddida hoose —

Xaddida sare —

Xaqsoorka —

Xaaladda caadiga ah —

Natiijooyinka cusbooneysiinta sida aad ku qorto.

Ku saabsan Kalkaaliyahan

confidence interval is a measure of the probability of a sample to contain a true population mean. It is used to calculate the probability of a sample to contain a true population mean. The confidence interval is a measure of the probability of a sample to contain a true population mean. The confidence interval is a measure of the probability of a sample to contain a true population mean. The confidence interval is a measure of the probability of a sample to contain a true population mean. The confidence interval is a measure of the probability of a sample to contain a true population mean. The confidence interval is a

Su'aalaha badanaa la isweydiiyo

Maxaa ka dhigaysa 95% kalsooni kala badh macnaheedu yahay?

Waxay ka dhigan tahay in haddii aad ku celcelisay tijaabada marar badan oo dhisay kala fogaansho mar kasta, oo ku saabsan 95% ka mid ah kala fogaansho kuwaasi ku jiri lahaa dadka dhabta ah dhexdhexaad ah. Ma aha in ay ka dhigan tahay in ay jiraan 95% suurtagalnimada dhexdhexaad ah waa in mid ka mid ah kala fogaansho gaar ah.

Markaan u baahanahay inaan isticmaalo t-dhexdhexaad ah?

isticmaal t-dhexdhexaad marka tusaale waa yar yahay (ugu yaraan hoos 30) iyo dadka caadiga ah ee ka leexashada waa la ogeyn. t-qaybsiga waxaa jira dabada culus, siin mid yar oo ballaaran, ka sii taxaddar badan oo dhexdhexaad ah ka badan tan z-ku salaysan mid.

Waa maxay xaddiga qaladka ah ee kala-goyska kalsoonida?

Marjica qaladku waa badh-waxaad u dhexeysa, z * · (σ / √n). Waxaad ku darto oo ka soo saarto oo ka mid ah tusaale u dhiganta in ay helaan xadka sare iyo hoose, sidaas marjica yar u dhiganta qiimeyn ka badan oo sax ah.

Sideen u sameeyaa in ay kala fogaansho kalsooni ka yar?

Ku ururi tusaale weyn, tan iyo ballaca hoos u laabto la jirridda square ee n, ama aqbalo heerka kalsoonida hooseeya. yareynta kala duwanaansho ee xogtaada sidoo kale wuxuu adkeynayaa inta udhaxeysa.

Ma heerka kalsoonida sare ka dhigaysaa kala fogaanshaha ballaaran?

Haa. Dalbashada kalsooni dheeraad ah isticmaali qiimaha muhiimka ah z * weyn, sidaas darteed 99% kala badh waa ka ballaaran ka mid ah kala badh 95% ka dhisan xogta isku mid ah. Waxaa jira mar walba is-dhaafsiga u dhexeeya kalsoonida iyo saxnaanta.

Waa maxay khalad caadi ah?

The qalad standard waa ka leexashada standard la qaybiyo by square root of size tusaale ah (σ / √n). Waxay miisaanka sida badan oo tusaale ah oo macnaheedu yahay in ay isbeddeli lahaa tusaale ah in tusaale ah, iyo waa dhismaha block ee marxalada qalad.

API — isticmaal xisaabinta ka code

Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Akhri dhammaan API xuquuqda →

Xarafka

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);

Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.

Ku saabsan Kalkaaliyahan

Su'aalaha badanaa la isweydiiyo

Kalkulatorro la xiriira

Xarafka

curl

JavaScript fetch()

JavaScript `fetch()`