P-Qiyaasta Kalkulatorka (oo ka Z)
U beddel z-score mid ka mid ah- ama laba-taaj oo p-qiimaha.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
small p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising under the null hypothesis, which counts as evidence against it. A large p-value means that your data would be surprising
Su'aalaha badanaa la isweydiiyo
Waa maxay qiimaha p?
The p-qiimaha waa suurtagalnimada, la yaab leh in ay run tahay, ee helitaanka tirakoobka imtixaanka ugu yaraan sida xad dhaaf ah sida mid ka mid ah la arkay. A yar p-qiimaha macnaheedu waa in xogtaada ay noqon lahaa aan la filayn hoos tirakoobka null, taas oo ah caddayn ka dhanka ah.
Sidee u laba-tailed p-qiimaha kala duwan yahay mid ka mid ah mid-tailed?
A laba-tailed tijaabo tirada natiijooyinka xad dhaaf ah labadaba jihooyinka, sidaas daraaddeed qiimaha p waa laba jeer qiimaha mid-tailed ee isku mid ah |z|. U isticmaali laba-tailed marka aad kaliya ka fiirsan in ay jiraan kala duwanaansho, iyo mid-tailed marka aad u saadaaliyay jihada hore.
Ma p < 0.05 waligood muhiim ah?
0.05 waa kaliya heshiiska caadiga ah, ma aha sharci. Waxay ka dhigan tahay 5% fursad ah oo been ah oo wanaagsan. iyadoo ku xiran goobta iyo qiimaha in la khaldan yahay, xaddidaadaha adag sida 0.01 waa badanaa in ka badan oo ku habboon.
Sideen u beddelaa z-dhibcood si ay u p-qiimaha?
Ka eeg meelaha jidhka ee qaybinta caadiga ah ee caadiga ah ee ka baxsan dhibcahaada z-score. Qalabkani wuxuu kuu sameeyaa: jidhka bidix waa P (Z ≤ z), jidhka midig waa 1 - P (Z ≤ z), iyo qiimaha p-ka laba-taaj oo laba jeer ka yar labada.
Ma weyn p-qiimaha muujiyaan in ay qiyaasta null waa run?
No. A weyn p-qiimaha kaliya macnaheedu waa in xogtaada waa la jaan qaadaya la qiyaasta null, ma aha in null waa la xaqiijiyay. ka maqnaanshaha caddayn ka dhanka ah ma aha caddayn u ah; waxaad uun u baahan tahay in ay ka yar tahay miisaanka tusaale ah si ay u ogaato saameyn.
Markaan u baahanahay inaan isticmaalo z-ku salaysan p-qiimaha ka dibna t-ku salaysan mid?
U isticmaal z-ku salaysan qiimaha marka dadka standard diidmada la yaqaan ama tusaale waa weyn (qiyaastii n ≥ 30). For tusaale yar oo leh diidmada standard la qiyaasay, t-qaybsiga siinaysaa p-qiimaha ka sii sax ah.
Waa maxay farqiga u dhexeeya p-qiimaha iyo heerka muhiimka ah?
Heerka muhiimka ah α waa xad aad ku siin hore, sida 0.05. The p-qiimaha waxaa laga xisaabiyaa xogtaada. Waxaad diido ee qiyaasta null marka p-qiimaha hoos u dhaco α.
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/p-value/curl
curl "https://calculator.free/api/v1/p-value/?z=1.96&tail=two"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/p-value/?" + new URLSearchParams({
"z": "1.96",
"tail": "two"
}));
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.