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. Wax kasta oo aad ka maqan tahay isticmaalaa default la mid ah ee boggani waa hore loo buuxiyey la; parameter aan la aqoon waa 400, marnaba zero maqan. 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.